When 36-year-old computer programmer Lisa Valdez was found dead inside her upscale San Francisco apartment, the police immediately suspected she was killed by someone she knew. But even after the police collected DNA samples from all of her male friends and family members, they were no closer to making an arrest, and the case eventually…

The brutal murder of a 94-year-old woman inside her home completely shocked a California community for years. The police were left without many answers as to who could be responsible for such a terrible crime until they found the clue they needed in the form of DNA. Photo Source: FOX News Episode Sources: SF Chronicle …

In 1992, 24-year-old Lisa Ziegert was kidnapped from the gift shop where she worked in the sleepy town of Agawam, Massachusetts. Over the next several years, law enforcement worked tirelessly to identify and capture her attacker. Can important forensic evidence eventually lead investigators to their suspect? Photo Source: Unsolved Mysteries Wiki Episode Sources: Chilling Crimes…

Marcellus Williams was charged and convicted of murdering a St. Louis woman inside her home in August 1998. Despite zero forensic evidence linking him to the brutal murder, he sits on death row today. Is Marcellus Williams a cold-blooded killer? Or another wrongfully accused man like he and his attorneys claim? Photo Source: Innocence Project…

A young woman is assaulted while jogging in a popular trial in New Mexico, but law enforcement struggles to identify her attacker. Without any fresh leads in the case, the police turn to a new investigative tool – forensic genetic genealogy to hunt down a predator. Episode Sources: AP News article ABQ Journal article KRQE…

A famous British journalist was mysteriously gunned down on her very own front doorstep in April 1999, leaving many people to wonder if this infamous murder will ever be solved. Photo Source: The Guardian Episode Sources: The Mirror The Guardian Standard Wales Online Entertainment Daily

In April 1985, Nancy and Derek Haysom were found brutally murdered inside their home in Bedford County. Both became victims of unspeakable violence, leaving many people to question who could have been responsible. When the forensic evidence led investigators to their suspects, no one could believe who it was. Photo Source: IMDb Episode Sources: Newyorker…

Photo Source: All Things Interesting In August 1990, the Gainesville Ripper murdered five college students over the course of just four days. These murders would eventually inspire one of the most popular slasher movies, Scream. If it weren’t for DNA testing, the true identity of the Gainesville Ripper might not have ever been uncovered. Episode…

A young teenager showed up at a stranger’s doorstep, claiming to have been attacked by her ex-boyfriend. But the more the police investigated her claims, the more inconsistencies they found, especially when it came to what the forensic evidence said happened. Is Ezra McCandless an innocent victim or a cold-blooded killer? Photo Source: CBS News

In October 2018, a 27-year-old production assistant mysteriously vanished while filming for a television show in Idaho. Before he disappeared, Terrence Woods Jr. had big dreams, but all those dreams were suddenly faulted when he inexplicably walked out scene. Since then, Terrence has never been seen or heard from again – Can forensic science help…