- 6 months ago
Not all killers become household names—some are more terrifying precisely because their stories remain untold. In this chilling countdown, we uncover 30 real-life murderers whose crimes were as horrifying as they were shocking, yet many people have never heard of them.
From little-known serial killers to obscure cold case murderers, these are the true crime stories that will send shivers down your spine.
📌 Perfect for true crime fans who think they’ve heard it all—until now.
From little-known serial killers to obscure cold case murderers, these are the true crime stories that will send shivers down your spine.
📌 Perfect for true crime fans who think they’ve heard it all—until now.
Category
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Short filmTranscript
00:00And in this particular case, the medical examiner was shocked to find that the eyeballs were gone.
00:06Welcome to WatchMojo, and today we're looking at 30 grisly murderers who have flown under the cultural radar.
00:12He would claim to be on an extraordinary mission to save lives through murder.
00:18Number 30, Gary Heidnik.
00:21July 1st will be the 30th anniversary of the conviction of Gary Heidnik.
00:25He is responsible for one of the most grotesque series of crimes ever to happen in Philadelphia.
00:32Maybe you've never heard of Gary Heidnik, but if you've seen The Silence of the Lambs, then you know his primary M.O.
00:38Between 1986 and 1987, Heidnik kidnapped six women off the streets of Philadelphia and took them to his House of Horrors, chaining them up in an underground pit.
00:48He would deprive them of food and water and subject them to acts of humiliation, all while hoping to impregnate the captives in order to create a perfect race of children.
00:57Two of his six captives died in captivity.
01:00Luckily, one victim escaped in March of 1987 and alerted the police, leading to Heidnik's arrest.
01:07His story then greatly influenced Thomas Harris, who partly modeled Buffalo Bill after Heidnik.
01:12Mister, my family, will pay cash. Whatever ransom you're asking for, they'll pay it.
01:17It rubs the lotion on its skin or else it gets the hose again.
01:22Number 29, Charles William Davis.
01:31That's where I risen to Charlie.
01:38He's no man, he's gone.
01:39When it comes to serial killers openly taunting the police, you probably think of the Zodiac or BTK.
01:46No one thinks of Charles William Davis.
01:48Between 1974 and 77, Davis committed multiple sexual assaults in Baltimore and murdered at least four women, often posing as some type of helpful citizen before attacking.
01:58But perhaps more perversely, Davis anonymously called emergency services after disposing of the bodies along highways or in wooded areas, reporting the crimes and giving them directions to the corpse's location.
02:10It was just one of his many sick thrills.
02:13Luckily, his crimes eventually caught up to him, and he has remained in prison since 1977.
02:18Yes, this confession came in a patrol car, an unlocked patrol car with an investigator with the Seminole County Sheriff's Office.
02:25And I want to warn you that William Davis was quite frank with the information he shared with the Seminole County Sheriff's Investigator.
02:31Number 28, Dale Hausner and Samuel Dietman.
02:34When he got to the mortuary, one of our friends that owns it, he said, Mrs. Estrada, he was shot once in the lung, and it penetrated two inches from his spine or an inch from his spine, and he suffocated immediately and went straight to our maker.
02:54Between May 2005 and August 2006, Phoenix was plagued by a rash of drive-by shootings.
02:59While police initially believed that just one perp was responsible, the shootings were eventually traced to two men, Dale Hausner and Samuel Dietman.
03:08The men prowled the streets of Phoenix, often under the influence of methamphetamine, and committed dozens of drive-by shootings, killing at least six and injuring 19.
03:17They are also known to have targeted animals.
03:20Police were eventually contacted by a concerned friend of Dietman's after he drunkenly confessed to the crimes, and they were both arrested following an investigation.
03:28Dietman was sentenced to life, and Hausner to death, although he took his own life in 2013.
03:34Looking at Dale, I believe he was born that way.
03:37He wasn't, he didn't turn into this monster growing up.
03:43And looking at Sam Dietman, in this case, he turned into a follower of Dale's, and would do anything for Dale just to seem to make him happy.
03:54Number 27, Charles Cullen.
03:56You've been in here a while.
03:58Nine years.
04:00You knew it was wrong.
04:02Yes, I did.
04:03At the time?
04:04At the time, and then later.
04:08Are you sorry what you did?
04:10Yes.
04:11Um, but like I said, I don't know if I would have stopped.
04:16We trust that our medical practitioners know what they're doing.
04:19So when that trust is intentionally broken, we become unimaginably terrified.
04:23Charles Cullen worked for years as a nurse at various hospitals throughout New Jersey and Pennsylvania, but he used his position to administer lethal doses of medication to vulnerable patients.
04:34Many of the drugs he used were difficult to trace, and his victims were often already ill, both of which allowed the deaths to go unnoticed or uninvestigated.
04:42As such, no one really knows how many people Cullen murdered throughout the years.
04:46Twenty-nine victims have been confirmed, and Cullen personally confessed to 40, but experts believe the number could be in the hundreds.
04:53He was able to move from hospital to hospital without so much as a bad reference.
04:59Cullen would kill another 13 people at Somerset in 13 months and try and kill three more, before two detectives, a state bureaucrat, and a female nurse finally connected the dots.
05:10Number 26, Herbert Mullen.
05:12The earthquake was going to take California into the sea, and he had to perform ritual sacrifices to prevent the earthquake from knocking California into the sea.
05:22He was voted most likely to succeed in high school, but Herbert Mullen had mental illness.
05:27By his mid-20s, Mullen had already been in numerous care facilities and was diagnosed with paranoid schizophrenia, which was exacerbated by heavy drug use.
05:36He started to believe that earthquakes could be prevented if Mother Nature received enough blood sacrifices.
05:41So, on October 13, 1972, he beat 55-year-old Lawrence White to death with a baseball bat.
05:47Over the next couple of months, Mullen would murder 12 more people, including a priest.
05:52Mullen's defense team argued that he was legally insane, but because his murder showed premeditation, he was found guilty and sentenced to life in prison.
06:01He died in 2022.
06:02A person who is born with schizophrenia dormant, and it does become full-blown illness, is born to be ill, but not to kill.
06:16Number 25, John Allen Muhammad and Lee Boyd Malvo.
06:20A week ago tonight, the shooting spree began, and seven days later, the callous killer may have claimed his ninth victim.
06:26Right now, police are on the scene of a deadly shooting with eerie similarities to the others.
06:31A man was shot dead tonight while pumping gas just outside Manassas, Virginia.
06:36When it comes to serial killers, we typically think of personal attacks like stabbings or strangulation.
06:41We rarely think of sniper rifles.
06:43Throughout October of 2002, the Washington area was besieged by a series of random sniper attacks,
06:50the victims being shot from long distance while doing routine activities like pumping gas or walking in parking lots.
06:55The attacks were completely random and totally unforeseeable, which only added to the terror.
07:01They were eventually linked to John Allen Muhammad, the mastermind, and his much younger accomplice, Lee Boyd Malvo.
07:07Ten people were killed in the shootings, and three more were injured.
07:10Even worse, police later linked the duo to a rash of shootings that occurred in the previous months, bringing their total body count to 17.
07:18What do you think of the fact that this may be over?
07:21Oh, I hope it is.
07:22I really do.
07:23I really hope for people's peace of mind.
07:28Number 24.
07:30Richard Lawrence Marquette
07:31This killer has the unique distinction of being the first person to be added as an 11th entry on the FBI's 10 Most Wanted list.
07:38This occurred in June 1961, when the dismembered remains of Joan Cottle were found in Portland.
07:44When the crime was linked to Marquette, police searched his home and found body parts wrapped in newspaper inside his refrigerator.
07:50He was imprisoned but released on parole in 1973.
07:54But his freedom didn't last long.
07:56In April 1975, a fisherman found the dismembered remains of Betty Wilson.
08:01Police once again traced this to Marquette.
08:03And while confessing to Wilson's murder, he also confessed to murdering a third victim in 1974.
08:08He brought them to her skeletal remains, but she has never been identified.
08:12Number 23.
08:14Charles Albright
08:15The eyes had been cut out so precisely that when the eyelids were shut, there were no scars, there was no bleeding, no sign of any bleeding.
08:26It was surgically precise.
08:29When someone is nicknamed the eyeball killer, you know you're in for something gross.
08:33Charles Albright was considered highly intelligent, with an interest in biology and anatomy from a young age.
08:38Unfortunately, he did not use that interest for good.
08:41Despite early promise, Albright led a troubled life, including multiple run-ins with the law.
08:47These crimes graduated to murder in the late 80s and early 90s, when Albright killed four people.
08:52Three of the victims were found without their eyeballs, as Albright had surgically removed them and taken them with him.
08:58The eyes were never recovered.
08:59Despite the evidence being mostly circumstantial, Albright was convicted of one murder and sentenced to life in prison.
09:05They immediately called the medical examiner and said, check the eyes.
09:13And they got a call back that said, the eyes are missing.
09:18Number 22.
09:19Harrison Graham
09:20I gotta say, that smell is worse than ever.
09:24Is it?
09:25In the summer of 1987, Harrison Graham was living off a disability pension and selling drugs out of his Philadelphia apartment.
09:32But it was also around this time that neighbors reported a rancid smell emanating from Graham's apartment.
09:37Police were called, and they broke down the door, which Graham had barricaded.
09:41Graham was not there, but police found the apartment in a horrific state, including dirty mattresses and a pile of garbage over a foot thick.
09:48They also found the decomposing remains and skeletons of a number of women.
09:53A further search of the entire complex uncovered human remains in the basement and inside a duffel bag on the roof.
09:59In total, Graham had murdered seven women, and he was convicted of all seven deaths.
10:04You want to come in?
10:05Hell no.
10:06I'll stay right here.
10:07Number 21.
10:08Howard Unruh
10:09Mass murderer Howard Unruh committed what is often regarded as the first mass shooting in modern history,
10:15a horrific event known as the Walk of Death.
10:17By September 1949, Unruh was in the throes of significant mental illness,
10:22exacerbated by constant arguments with his neighbors and his experiences in World War II.
10:27Around 9.20 a.m. on the morning of September 6, Unruh left his apartment and committed the Walk of Death.
10:33Over the next 12 minutes, he walked through his Camden neighborhood and shot people indiscriminately,
10:38killing 13 and injuring three.
10:40No one was safe, including a number of young victims.
10:43He never showed remorse for the crime, and later told a psychologist,
10:47quote,
10:48I'd have killed a thousand if I had enough bullets.
10:51The Harp Brothers
10:52This duo holds a special name in true crime history, yet few people have heard of them.
10:57Perhaps that's owing to how long ago their crimes were.
11:00Macasia Big Harp and Wiley Little Harp are the first known serial killers in American history.
11:06Stories we heard make your blood run cold.
11:10I hear tell they move through the wilderness like the natives themselves.
11:16Silent.
11:18Two lurking devils.
11:20Just waiting to spring on any unsuspected passersby.
11:23Their crimes spanned the southeastern United States in the late 18th century.
11:28Taking advantage of the remote isolation of the Appalachian Mountains,
11:31the brothers would kill settlers coming south after the American Revolution.
11:34Their true number of victims remains unknown,
11:38but most estimates place it between 39 and 50.
11:41Feed me and I'll submit myself to the courts in the noose without further protest.
11:45That's what you want, isn't it?
11:46Their actions attracted vigilante attention,
11:49and Macasia was brutally killed by a posse in 1799.
11:53Wiley was eventually caught and executed in 1804.
11:58Alexander Pichushkin
11:59One of the most notorious Russian serial killers in modern history,
12:03Alexander Pichushkin killed up to 60 people between 1992 and 2006.
12:08He became known as the chessboard killer and bits-of-park maniac,
12:12after the Moscow park where most of his crimes occurred.
12:14It was here, exactly at this place, where we found one of the victims.
12:22Of course, when we found him, it wasn't a pleasant sight.
12:25Many of his victims were elderly vagrants whom he attracted with the promise of vodka,
12:30company, and a good chat.
12:32He would then strike them with a bottle or a hammer.
12:34Pichushkin was finally caught in 2006 after killing co-worker Marina Moskaleva.
12:39Surveillance footage from a train station captured Moskaleva with Pichushkin,
12:43and he was finally taken in for questioning.
12:45I only had one thought.
12:47I wanted him to show us as many as he could,
12:49to tell us everything, where he dumped people, where he left them.
12:55I wanted as much evidence as I could get.
12:57He readily confessed to his crimes, and is now spending life in prison.
13:02Dorothea Puente
13:03Female serial killers don't often get recognition,
13:06even if they're as bad as Dorothea Puente.
13:08Known in the media as the Death House Landlady,
13:12Puente operated a boarding house in Sacramento that took in tenants who were elderly,
13:16developmentally disabled, or had substance use issues.
13:19This is where Dorothea would bring her victims,
13:22after giving them the drug and alcohol combination,
13:26and then bringing them in here and leaving them on the floor,
13:29until she could prepare them at a later time.
13:31Between 1982 and 1988, Puente killed nine of her patrons,
13:36and committed fraud by collecting their pensions and social security checks.
13:40Seven bodies were buried on the property of her boarding house,
13:43and another was dumped in a box by a river.
13:46Puente was eventually caught after killing Alvaro Montoya,
13:49as his social worker had reported him missing.
13:51She was convicted of three homicides and given life in prison.
13:55After deliberating for 24 days,
13:58the jury found Dorothea Puente guilty of three murders,
14:02but were deadlocked on all the other charges.
14:04She died in 2011 at the age of 82.
14:10David Parker Ray
14:11Better known as the Toy Box Killer,
14:14David Parker Ray is not officially a serial killer,
14:17as he has never been lawfully linked to a homicide.
14:20However, many experts believe that he is responsible for up to 60 killings.
14:24When Ray died in 2002 and took that knowledge to his grave,
14:29it left investigators searching for answers.
14:31We're convinced that there are remains.
14:34That's just a matter of locating.
14:35Ray terrorized the American Southwest from 1957 to 1999.
14:40He would kidnap women and torture them in a trailer he called his Toy Box,
14:44before drugging and abandoning them or killing them.
14:47The Toy Box is where Ray's fantasies came to life.
14:50There, he dominated his victims.
14:54The details are too horrible to get into here.
14:57While he was never convicted of murder,
14:59Ray received 224 years in prison for abduction and torture.
15:04He died of a heart attack in 2002.
15:08Carl Pansrum
15:09The awful crimes of Carl Pansrum range from burglary and arson to sexual assault and murder.
15:15Born in 1891, Pansrum had a difficult childhood with strict and abusive parents.
15:20As an adult, he moved around a lot and was in and out of prison for various offenses.
15:24In 1920, he bought a yacht and sexually assaulted and murdered 10 sailors in New York.
15:30His crimes continued in Southern Africa, where he targeted young and vulnerable victims,
15:35which he continued to do on his return to the States.
15:37From prison, he confessed to 21 murders, but may have killed over 100.
15:43He was executed in 1930 at the age of 39.
15:47Do you think he was sincere in not having any remorse?
15:50Or was it just a guise?
15:52Well, I think he was so full of hatred,
15:56and with such a need, a compulsion to kill,
16:01that perhaps it never entered his mind.
16:04Samuel Little
16:05When we think of the most infamous serial killers in American history,
16:09we think of Ted Bundy, Jeffrey Dahmer, and John Wayne Gacy.
16:12Few ever bring up Samuel Little,
16:14even though he has the highest victim count of any American serial killer.
16:19Little's life of crime spanned decades.
16:21The FBI believes all of his confessions are credible.
16:24Some of the bodies were never found.
16:26He was already serving a life sentence for three murders in the 1980s.
16:30His first confirmed victim was 32-year-old Annie Stewart,
16:33who was strangled to death on October 11th, 1981.
16:37However, his killing spree may have started over a decade earlier
16:40with the murder of Mary Jo Brosley in December 1970.
16:44After Little was arrested in 2012,
16:46he confessed to killing 93 women.
16:49Mindy Lepree's murder was one of the few that did get reported.
16:52The deaths of most of the other women he claims to have killed never made the press.
16:57The FBI has officially linked Little to 60 of these 93 killings.
17:02By comparison, Bundy killed at least 20,
17:04Dahmer, 17, and Gacy, 33.
17:08Robert Picton
17:09Canada has also produced its fair share of serial killers,
17:13including Robert Picton.
17:14The son of pig farmers in Port Coquitlam, British Columbia,
17:17he and his brother David worked from a young age
17:19and were picked on for stinking of pig manure in school.
17:23After inheriting the farm,
17:24the brothers held raves on the property in the 1990s.
17:27And I did a few stupid things in my life,
17:30which I don't want to recall about,
17:35but I'll explain them as the tape goes on.
17:37A police search in 2002 uncovered the remains of several missing women.
17:41Targeting unhoused people and sex workers in Vancouver's downtown Eastside,
17:45Picton had been murdering women on the farm.
17:48He was charged with 26 murders, but confessed to 49.
17:52It's believed that Picton fed some remains to his pigs.
17:55Some may have been mixed with pork and sold to the public.
17:59With today's four new charges, an unhappy historical moment for Canada.
18:03This case is now the largest serial killer investigation in Canadian history.
18:10Luis Garavito
18:11Despite the fact that he is the most prolific serial killer in modern history,
18:15Luis Garavito is little known outside of his native Colombia.
18:18As a child, he was beaten by his father,
18:21tormented in school, and abused by neighbors.
18:23He grew into an angry and anti-social man,
18:26obsessed with abusing male minors.
18:28While you're cowering behind the couch,
18:30while your drunken father is at the door and making everybody scared,
18:34someday I will be drunk and come home,
18:38and everybody will be cowering when I enter the room.
18:40He would sometimes wear a disguise to lure his victims to isolated spots.
18:44The horrific nature of what would happen next is just too gruesome to talk about here.
18:49Then, with terrifying detachment,
18:51Garavito related the details of his crimes.
18:54In 1999, he was apprehended and eventually sentenced to a combined 1,853 years in prison.
19:01He's officially linked to 193 murders,
19:05but his confession would bring this to 221.
19:09Robert Hansen
19:10This serial killer was especially terrifying for the way he hunted down his victims.
19:15In his youth, Hansen was unpopular and became obsessed with the idea of revenge,
19:20especially against women.
19:22In 1967, he moved from Iowa to Anchorage, Alaska, where he worked as a baker.
19:27However, in the 1970s, he began abducting women,
19:31sexually assaulting them and flying them out to remote locations.
19:34He would then hunt them through the Alaskan wilderness.
19:36I think everybody was looking at him real seriously because he made a good suspect when you looked
19:42into him.
19:42He had a pretty extensive criminal background.
19:46An escaped victim, Cindy Paulson, warned police,
19:48who at first took Hansen's word over hers.
19:51Fortunately, famous criminal profiler John Douglas helped lead investigators back to Hansen.
19:56It's believed that Hansen killed between 17 and 21 women.
20:00Hansen accompanied troopers into the field to find more of his victims,
20:04represented by X's on his map.
20:07A total of eight victims were found.
20:11Some places on the map went unexplored.
20:14He died in 2014 while serving life in prison.
20:18Clementine Barnabat
20:19Modern historians have cast doubt on whether or not Clementine Barnabat
20:23actually committed the killings for which she's been blamed.
20:26However, she was officially convicted of one homicide
20:29and personally confessed to killing 35.
20:32Following her arrest, Barnabat claimed that she was given a magical hoodoo talisman
20:36by a priestess of the Church of Sacrifice.
20:39Wanting to test its validity,
20:41she embarked on a series of axe murders throughout the state of Louisiana.
20:44She was eventually caught and sentenced to life in prison.
20:47However, she was subsequently released in 1923
20:50and disappeared from the history books.
20:53Gerard John Schaefer
20:55In his mugshot, Gerard John Schaefer looks like an everyday man.
21:07His hair combed to the right and a friendly smile plastered on his face.
21:11However, a second glance may be warranted
21:14after learning that he potentially killed 30 people throughout the 60s and 70s.
21:18Schaefer was a Florida sheriff's deputy
21:20when he kidnapped two teenage women and tied them to a tree in the forest.
21:24The women escaped after Schaefer received a call on his radio.
21:27Had these two girls not been made of strong stuff,
21:31they would not have lived to tell the story
21:33and Schaefer would have never been caught.
21:35Sadly, Susan Place and Georgia Jessup,
21:37whom he kidnapped two months later,
21:39were not so lucky.
21:40He takes the two young girls by force to the woods,
21:43near some swamps that border the ocean.
21:45In 1973, Schaefer was convicted of their murders
21:49and given two life sentences,
21:51but he's suspected of having over 30 victims.
21:56Vicki Dawn Jackson
21:57While quite a big name in Texas,
22:00Vicki Dawn Jackson never gained national attention,
22:02despite killing at least 10 people in a three-month span
22:06from December 2000 to February 2001.
22:09Working as a nurse in North Texas,
22:11Jackson used a paralyzer called Mivocurium Chloride
22:14on her elderly patients,
22:16which prevented their ability to breathe.
22:18The deaths didn't raise any red flags
22:20owing to the age of the patients,
22:22but alarm bells started ringing
22:23once administrators noticed the missing Mivocurium Chloride.
22:27They came to suspect Jackson,
22:28as she was often the last person reported
22:31in the victims' rooms before their deaths.
22:33A syringe used to administer Mivocurium Chloride
22:35was eventually found in her trash can,
22:37and she was subsequently charged
22:39and sentenced to life in prison.
22:42Ronald Dominique
22:43Those from Louisiana may recognize Ronald Dominique
22:46as the Bayou Strangler,
22:48a serial killer who killed at least 23 men
22:50between 1997 and 2006.
22:53Dominique frequented gay bars around Homa, Louisiana,
22:56and would assault and kill the men he took home.
22:58We're not dealing with some very clever, conniving killer
23:03that has actually planned out his pleasurable activities
23:07in a meticulous way,
23:10and clearly there is a method that works,
23:13but beyond that,
23:14there seems to be no care consideration for these acts.
23:17In 2006, however,
23:19a survivor of Dominique's contacted the police
23:21to voice his suspicions about the man.
23:24Dominique was arrested
23:25after DNA matched him to recovered corpses,
23:28putting an end to his crimes.
23:30When he went to court,
23:31Mr. Dominique pled guilty,
23:33and he was sentenced to eight consecutive life sentences.
23:37When you get a life sentence in Louisiana,
23:39you leave jail in a pine box.
23:43Israel Keyes
23:44It's clear just how cold and calculating he was.
23:48Between 1998 and 2001,
23:51Israel Keyes served in the United States Army.
23:53Fellow soldiers described him as a quiet man
23:56who would frequently drink large amounts of alcohol.
23:58Keyes began a criminal life committing bank robberies,
24:01burglaries, and arson.
24:03He also killed at least four people,
24:05although he's suspected of a further seven.
24:08Investigators say Keyes is a textbook serial killer.
24:11Like other famous killers in the past,
24:14he took pleasure in the act of taking a life.
24:17He talked about the rush that he got out of it,
24:19the adrenaline,
24:20and kind of the high from doing it,
24:22and I think,
24:23unfortunately,
24:25I think he enjoyed what he was doing.
24:26Perhaps his most famous victim is Samantha Koenig.
24:29The 18-year-old was kidnapped from work,
24:32assaulted,
24:32and killed.
24:33Her body left in a shed
24:35while Keyes went on a family vacation.
24:37He indicates to Samantha that his goal is to get money,
24:39and if he gets money,
24:40that he intends to let her go.
24:42There was no truth to that.
24:43Upon returning,
24:44he took a ransom photo,
24:46pretending she was still alive.
24:48Keyes was caught using her debit card and arrested,
24:51but he took his own life while awaiting trial.
24:54Number 6.
24:55The Long Island Serial Killer
24:56In late 2010 and early 2011,
25:00a number of deceased women were found along Ocean Parkway on Long Island.
25:03This may be a cold case for some time.
25:05It's unreal,
25:06and I'm just numb.
25:07Kickstarting one of the most fascinating serial killer stories of the 21st century.
25:12The remains of the so-called Gilgo 4 were found in December 2010,
25:16and the remains of six more victims were discovered in the following months,
25:20bringing the killer's body count to at least 11.
25:22One by one,
25:23the bodies were identified,
25:25and with each name came the story of a troubled life cut short.
25:30The case was cold for many years,
25:32but a major break occurred in July 2023,
25:35when a Manhattan architect named Rex Heuerman was arrested in connection with the murders.
25:39As of 2025, Heuerman has pleaded not guilty to all counts of murder,
25:44and his trial has yet to begin.
25:46He's going to make a mistake.
25:47They all do.
25:48And we're going to get this guy.
25:51Salvatore Peron
25:52Nicknamed the Son of Sal,
25:55Staten Island man Salvatore Peron turned his frustrations with life into a bloody killing spree.
26:01His wife had left him and his business was failing,
26:04leaving him broke.
26:05In 2012,
26:06he began roaming the streets of Brooklyn and entering stores with Middle Eastern merchants.
26:11Arriving at closing time when the stores were empty,
26:13Peron shot and killed three merchants with a sawed-off rifle.
26:17His M.O. is still unclear,
26:18but police and witnesses say Peron was trying to sell women's clothing at the various locations,
26:24mostly small boutiques and 99-cent stores.
26:26After police searched his home,
26:28they found a 12-gauge shotgun, ammunition, and duct tape.
26:32He also carried around a so-called kill kit that included switchblades,
26:36a serrated knife, bleach, and latex gloves.
26:39I think it's reasonable to assume that he was going to continue doing this,
26:44and by arresting him, we have saved lives.
26:48Peron was convicted of all three killings,
26:51and sentenced to 75 years to life in prison.
26:55Lydia Sherman
26:56An old-timey serial killer also known as the Derby Poisoner,
27:00Lydia Sherman lived in the eastern United States between 1824 and 1878.
27:05She seemingly had no regard for human life,
27:08not even her own children.
27:10She reportedly killed three husbands with arsenic in a span of seven years,
27:14and disposed of eight children the same way.
27:17All of these deaths were officially attributed to typhoid fever at the time,
27:22with no one being any the wiser to Sherman's secret life as a serial killer.
27:26Sherman's crimes eventually caught up to her, however,
27:29and she was sentenced to life in prison.
27:31She died of cancer at 53 in 1878.
27:36Amelia Dyer
27:37When it comes to 19th-century serial killers,
27:40few are as prominent, or as sick, as Amelia Dyer.
27:44But even then, her name has mostly been lost to time.
27:47Living in Victorian England,
27:49Dyer was a baby farmer,
27:51an old practice in which people took in orphaned children in exchange for money.
27:55Unfortunately, Dyer had depraved ulterior motives for doing so.
28:00Amelia Dyer was a murderer,
28:02and she knew what she was doing.
28:04This was a calculated career plan
28:06that she'd embarked on and sustained over 30 years, come what may.
28:09She killed her charges.
28:11And while Dyer has only been officially linked to six deaths,
28:15her body count is often theorized to be somewhere between 200 and 400.
28:20If that's true,
28:21it would make Dyer one of the most prolific killers in history.
28:25Dyer was finally caught in 1896 and hanged at London's Newgate Prison.
28:30Her last words?
28:31I have nothing to say.
28:32Her death closed a casebook on one of the most deadly serial killer cases in British history.
28:38Patrick Mackay
28:40His name was Patrick Mackay.
28:43He became known simply as the psychopath.
28:46Patrick Mackay may have been one of Britain's most serious serial killers.
28:51In his early 20s,
28:53Englishman Patrick Mackay became obsessed with Nazism.
28:56He had multiple substance use disorders
28:58and claimed to have committed his first killing by drowning an unhoused man in the River Thames.
29:03A few years later, on March 21st, 1975, he fatally attacked a priest with an axe.
29:09Once again, the circumstances of the murder shocked even hardened police officers.
29:14I've been to several gory scenes before, but I've never seen so many injuries on a murdered person before this.
29:21Following Mackay's arrest, he became the prime suspect in dozens of killings,
29:26most of which occurred after the victim was robbed.
29:28Mackay has been officially tied to three deaths,
29:31but he personally claims to have killed 11.
29:34He was sentenced to life in prison, and remains there to this day.
29:38Detective Chief Inspector Lou Hart looked deep into Mackay's eyes
29:42during one haunting and memorable interview.
29:46He believes Mackay should never be released.
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30:06Carl Denka
30:07This man's lack of mainstream attention is baffling,
30:11considering the extent and severity of his crimes.
30:14Accurately known as the forgotten cannibal,
30:17Denka was a Prussian man who killed up to 42 unhoused men between 1903 and 1924,
30:22and ate their remains.
30:24Denka was a well-liked organist at his local Lutheran church,
30:28and ran a food shop that sold various kinds of meat.
30:31Yeah, you can guess what people now suspect.
30:34Denka was caught in 1924,
30:36but took his own life before questioning could begin.
30:39When police searched his home, they found countless body parts.
30:42His motivation, and much of his grisly story, remains unknown.
30:46Which little-known killers do you know?
30:48Tell us about them in the comments below.
30:51He was going to prevent cataclysmic earthquakes by killing people.
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