00:00It was the last day of her junior year at Paradise Valley High School.
00:0317-year-old Alyssa Turney had her whole life ahead of her.
00:07She had a steady boyfriend, a part-time job, and dreams of moving to California.
00:13Around 11 a.m., Alyssa walked into her boyfriend's woodwork class
00:17to tell him something unusual. She was leaving school early.
00:21Her stepfather, Michael Turney, was picking her up.
00:24That was the last time anyone outside her family ever saw Alyssa alive.
00:30Hours later, Michael called the police to report that Alyssa had run away.
00:34A note found in her room claimed she was heading to California.
00:38But Alyssa left behind her clothes, her makeup, her cell phone, and nearly $1,800 in savings.
00:45For 25 years, her fate has remained one of Arizona's most haunting mysteries.
00:51To understand Alyssa's disappearance, you have to look inside the Turney home.
00:56After her parents divorced, Alyssa's mother married Michael Turney, an electrician.
01:02Together, they formed a large, blended family, welcoming a younger daughter, Sarah.
01:08Tragedy struck when Alyssa was just nine.
01:11Her mother died of lung cancer, leaving Michael to raise the two young girls alone.
01:16As Alyssa grew into a teenager, the atmosphere inside the house shifted.
01:21She confided in friends that her stepfather was strict and intensely overprotective.
01:26Michael went as far as installing surveillance cameras throughout their Phoenix home.
01:31Alyssa knew she was constantly being watched.
01:34The day she vanished, Michael claimed he took Alyssa out for lunch.
01:38They had an argument, and he dropped her off at home.
01:41He later told police that Alyssa called him a week later from a California payphone before hanging up.
01:47Believing she was simply a runaway, the police didn't search her room or interview Michael.
01:52The case went completely cold.
01:55Seven years later, following a false confession from a serial killer that renewed interest in the case,
02:01detectives officially reopened the investigation.
02:04This time, they focused heavily on Michael.
02:07Friends of Alyssa came forward, alleging years of verbal abuse.
02:12When Michael refused to cooperate, police executed a search warrant on his home.
02:17What they found shocked the community, but it had nothing to do with Alyssa.
02:22Inside the house, detectives uncovered 19 firearms, silencers, dozens of homemade bombs,
02:28and a 98-page manifesto detailing a plot to attack a local union hall.
02:33Michael was sent to federal prison for seven years on weapons charges.
02:37But for Alyssa's family, this wasn't justice.
02:41With the legal system stalled, Alyssa's younger sister, Sarah, took matters into her own hands.
02:48She launched a relentless social media campaign, creating a viral TikTok account and a hit podcast to demand answers.
02:55Sarah released chilling pieces of family history, including old audio where a young Alyssa called Michael a pervert,
03:02and a 2017 recording where Michael told Sarah he would only give her honest answers on his deathbed.
03:09The public pressure worked.
03:11In August 2020, Michael Turney was arrested and charged with the second-degree murder of Alyssa.
03:17The trial finally began in July 2023.
03:21For six days, prosecutors presented their circumstantial case,
03:25building a portrait of a controlling and abusive father.
03:29But true crime met a harsh legal reality.
03:32Because Alyssa's body had never been found,
03:35the defense argued there was no substantial physical evidence that a murder even took place,
03:40let alone that Michael caused it.
03:42The judge agreed, issuing a judgment of acquittal.
03:46After less than a week of testimony, Michael Turney walked free.
03:50Today, Michael Turney maintains his innocence,
03:52even launching his own YouTube channel to try and clear his name.
03:56To this day, Alyssa Turney's body has never been recovered.
04:00While the legal battle may be over, Sarah Turney's search for her sister continues.
04:06A reminder that behind every cold case headline is a family refusing to let a loved one's light go out.
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