00:01Antonio Puerta, August 25th, 2007.
00:07It's the opening day of the La Liga season in Spain.
00:11A packed stadium in Seville, the air electric with anticipation.
00:16On the field is 22-year-old Antonio Puerta, a hometown hero,
00:21a rising star for Sevilla FC.
00:24He's already a cult legend, having scored the winning goal
00:27that sent them to their first-ever UEFA Cup Final the year before.
00:30He's at the peak of his physical powers.
00:34Or so everyone thought.
00:36Around the 35th minute of the match, the cameras catch him jogging back.
00:40And then he just slows down.
00:44He bends over, puts his hands on his knees, and collapses onto the turf.
00:50It's a shocking moment.
00:52The game stops.
00:53His teammates rush to his side, panic etched on their faces.
00:58Medical staff sprint onto the field.
01:00For a few terrifying moments, he's in cardiac arrest.
01:04They use a defibrillator, they perform CPR, and somehow, they bring him back.
01:11He even manages to walk off the field, leaning on the staff, looking dazed but alive.
01:17The crowd applauds, relieved.
01:20It looks like the crisis is over.
01:22But it wasn't.
01:24In the locker room, out of sight of the cameras, he collapsed again.
01:29And again.
01:30He suffered a series of cascading cardiac arrests.
01:34He was rushed to the hospital and placed on life support.
01:37But the damage was done.
01:39The repeated arrests had starved his brain of oxygen, causing irreversible damage.
01:45Three days later, Antonio Puerta was pronounced dead.
01:49The autopsy revealed a hidden genetic time bomb, arrhythmogenic right ventricular dysplasia.
01:56A rare heart condition that causes scar tissue to build up in the heart muscle, leading to fatal arrhythmias.
02:02The cruel irony?
02:04He'd had routine medical checkups just weeks before, and nothing alarming was found.
02:12Dimebag Daryl
02:13December 8th, 2004.
02:16The Alrosa Villa Nightclub in Columbus, Ohio.
02:19It's a small, grimy club, packed with a few hundred metalheads.
02:24On stage is Damage Plan, the new band formed by legendary Pantera guitarist Dimebag Daryl.
02:29The lights are low, the air is thick with smoke.
02:33The crowd is pressed right up against the stage, just feet away from their hero.
02:38The band launches into their first song.
02:40The energy is explosive.
02:42And then, from the side of the stage, a figure emerges.
02:46A man in a hooded sweatshirt, moving with a chilling purpose.
02:50He walks straight towards Dimebag, raises a 9mm Beretta, and opens fire.
02:55Point-blank range.
02:57One shot hits Dimebag in the head.
02:59He's killed instantly.
03:02But the gunman, a deranged ex-Marine named Nathan Gale, doesn't stop.
03:06He keeps firing.
03:08He kills Nathan Bray, a fan who tried to tackle him.
03:12Aaron Houck, a club employee.
03:14And Jeff Thompson, the band's head of security.
03:16It's absolute chaos.
03:18Screaming, panic, people diving for cover.
03:21Gale grabs a hostage, the band's drum tech John Cat Brooks, putting the gun to his head.
03:27The first police officer on the scene, James Niggemeier, comes in through a back door.
03:33He sees Gale with the hostage, raises his shotgun, and with a single, perfectly aimed shot, ends the rampage.
03:40The motive?
03:42Gale was a paranoid schizophrenic, obsessed with Pantera.
03:46He blamed Dimebag for the band's breakup, and believed the guitarist was stealing his thoughts.
03:51It was a senseless, brutal act of violence that stole one of Mettle's most beloved and influential figures,
03:57right in the middle of doing what he loved, in front of the fans who adored him.
04:03Chuck Hughes
04:06October 24th, 1971.
04:09Tiger Stadium, Detroit.
04:11The Lions are playing the Chicago Bears.
04:14It's late in the fourth quarter.
04:1628-year-old wide receiver Chuck Hughes is in the game, a reserve player getting some action.
04:22He runs a route, catches a pass for 32 yards, and takes a hard, but routine, hit.
04:28He gets up, jogs back to the huddle.
04:31A few plays later, he's jogging back to the huddle again.
04:35And then, he just clutches his chest and collapses to the ground, face down, near the 15-yard line.
04:41At first, nobody realizes the gravity of the situation.
04:46Players think he's faking an injury to stop the clock.
04:49But one man on the field knows something is terribly wrong.
04:53Bears linebacker Dick Butkus, one of the most feared men in the NFL,
04:58starts waving frantically, desperately, to the sidelines for medical help.
05:02The stadium goes silent.
05:05Medical staff rush onto the field.
05:07They start CPR right there on the turf.
05:10His wife Sharon is in the stands, watching in horror as her husband lies motionless.
05:16He's rushed to the hospital, but it's too late.
05:20Chuck Hughes is pronounced dead.
05:22He remains the only NFL player to die on the field during a game.
05:27The autopsy revealed the cause.
05:30A massive heart attack.
05:32One of his coronary arteries was 75% blocked by advanced, undiagnosed atherosclerosis.
05:40The hit he took on the previous play likely jarred a blood clot loose,
05:44which then completely blocked the artery, triggering the fatal attack.
05:50Tommy Cooper
05:51Tommy Cooper was a British comedy legend, a giant of a man, famous for his red fez and his deliberately
06:00bungled magic tricks.
06:02His whole act was based on failure, on things going wrong.
06:07And on April 15th, 1984, it went catastrophically, fatally wrong, live on national television.
06:16He was performing on the variety show, live from Her Majesty's.
06:21Millions were watching at home.
06:23His act involved him pulling various items from a large gown.
06:27His assistant had just handed him a prop.
06:30He was halfway through a sentence, and then he just… slumped.
06:35He slowly slid down, his back against the curtain, and sat on the stage.
06:41The audience roared with laughter.
06:44They thought it was part of the act.
06:45A classic Tommy Cooper pratfall, the perfect, hilarious end to a trick.
06:51But backstage, there was no laughter.
06:54The production crew knew something was terribly wrong.
06:57The show's director, watching on the monitors, saw his eyes were closed.
07:02He made the split-second decision to cut to a commercial break.
07:06While the ads were running, the crew rushed onto the stage, dragged Cooper behind the curtain,
07:12and desperately tried to revive him.
07:14It was no use.
07:15He had suffered a massive heart attack.
07:18He was pronounced dead on arrival at the hospital.
07:22The viewers at home saw their favorite comedian collapse, and they laughed.
07:27They had no idea they were watching a man die.
07:32Owen Hart
07:34May 23, 1999.
07:37The Kemper Arena in Kansas City is packed with over 16,000 wrestling fans for the WWF pay-per-view,
07:44Over the Edge.
07:46Millions more are watching at home.
07:49Owen Hart, performing as his superhero alter ego, the Blue Blazer, is scheduled to make a dramatic entrance,
07:56descending from the rafters 78 feet above the ring.
08:01The stunt relied on a quick-release snap shackle, the kind used on sailboats,
08:06not designed to suspend a human being.
08:09It took only six to eight pounds of pressure to trigger.
08:13A rigging expert had warned that this type of shackle was dangerous for this kind of stunt,
08:18but the configuration was chosen anyway because it was cheaper and faster than a film-grade safety system with a
08:24secondary backup.
08:25The irony, for Over the Edge, they chose a quicker, cheaper, comic-style release system.
08:33As Owen was being lowered, something went wrong.
08:37His blue blazer cape, or maybe just a small, reflexive movement to adjust himself, was enough to trigger the shackle.
08:44And Owen Hart fell.
08:47He plunged roughly 80 feet, reaching an estimated speed of 50 miles per hour at impact.
08:54He didn't land flat on the canvas.
08:56He hit the top rope, chest-first, about a foot from the turnbuckle, before his body slammed into the ring.
09:04The TV broadcast was on a pre-taped segment, so the fall itself wasn't shown to viewers at home.
09:11But the 16,000 fans in the arena saw it all.
09:15Medical experts estimated he lost consciousness within eight to 15 seconds of impact
09:20and died within minutes from blood loss and cardiac arrest.
09:24There was no realistic scenario in which he could have been saved.
09:28Owen was rushed to Truman Medical Center.
09:32Thirteen minutes after arrival, doctors stopped their efforts.
09:36At 8.12 p.m., roughly 33 minutes after the fall, Owen Hart was pronounced dead.
09:44In a decision that remains controversial to this day, the WWE chose to continue the show.
09:51The wrestlers who had to perform after him did so in a ring where their friend had just died.
09:57His wife, Martha Hart, filed a wrongful death lawsuit against the WWF.
10:03In 2000, a settlement of approximately $18 million was approved, $10 million for Martha, $3 million for each of their
10:11two children, and $2 million for his parents.
10:15She used part of that money to establish the Owen Hart Foundation, which helps the working poor in Calgary.
10:22WWE later sued the manufacturer of the snap shackle, Lumar LTD, and received millions more in a separate settlement.
10:30Court documents confirmed the shackle was never certified for human suspension.
10:38Ray Chapman
10:40Ray Chapman
10:42August 16th, 1920.
10:44The Polo Grounds in New York.
10:46The Cleveland Indians are playing the New York Yankees.
10:49It's a gloomy, overcast afternoon.
10:52In the fifth inning, Ray Chapman, the Indian star shortstop, steps up to the plate.
10:57On the mound is Carl Mays, a pitcher known for his intimidating, submarine-style delivery.
11:04Mays winds up and throws a fastball.
11:07In 1920, the baseballs weren't pristine white orbs.
11:11They were used for entire games, becoming scuffed, dirty, and dark.
11:16In the fading light of the afternoon, the ball was almost invisible.
11:21Chapman never moved.
11:23The ball struck him on the left side of the head with a sickening crack.
11:27The sound was so loud that Mays, thinking it had hit the bat, fielded the ball and threw it to
11:33first base.
11:34But Chapman didn't run.
11:36He collapsed to the ground, blood pouring from his ear.
11:40He managed to get to his feet and even tried to walk off the field, but he collapsed again before
11:46reaching the dugout.
11:47He was rushed to the hospital, where surgeons performed an emergency operation to relieve the pressure on his brain.
11:53But the damage was too severe.
11:56His skull was fractured in multiple places.
11:59Twelve hours after being hit, Ray Chapman died.
12:04He remains the only Major League Baseball player to be killed by a pitch during a game.
12:10His death led to immediate changes.
12:12The league began to mandate that umpires replace dirty, scuffed baseballs.
12:17And while it took decades, his death was the first tragic step on the long road to the mandatory use
12:24of batting helmets.
12:29The Giro d'Italia is one of the most beautiful and brutal races in professional cycling.
12:35And on May 9th, 2011, it showed its deadliest side.
12:39It was stage three.
12:41The riders were on the treacherous descent of the Passo del Bocco.
12:44Wouter Weiland, a 26-year-old Belgian sprinter, was near the back of the main group, traveling at around 50
12:50miles per hour.
12:52He glanced back over his left shoulder, maybe to check on other riders.
12:55It was a split-second loss of concentration.
12:58But on a narrow, winding mountain road, a split-second is all it takes.
13:03His left pedal clipped a low stone wall at the side of the road.
13:07The impact launched him from his bike.
13:08He flew through the air and crashed face-first into the asphalt and another wall about 65 feet down the
13:15road.
13:16The scene was horrific.
13:18The Giro's on-site doctor, Giovanni Tredici, was one of the first to arrive.
13:23He described it in chilling detail.
13:25A basal skull fracture, facial bones shattered, massive blood loss.
13:31Weiland's heart had stopped on impact.
13:33For 45 minutes, the medical team performed CPR.
13:37They administered adrenaline.
13:38They did everything they could.
13:40But it was hopeless.
13:41He was pronounced dead at the scene, his body lying on the road as a helicopter landed nearby.
13:47The next day, the race was neutralized.
13:50The entire peloton rode together in a slow, silent procession, a tribute to their fallen colleague.
13:57Weiland's teammates and his best friend, Tyler Farrar, crossed the finish line together, arm in arm, their faces streaked with
14:04tears.
14:04It was a heartbreaking display of solidarity in the face of a sport's ultimate tragedy.
14:09The next day, the
