In 1989, four members of the Pelley family from Indiana were gunned down inside their home. Without any leads or forensic evidence, the police decided they had their suspect: the Pelley family’s 17-year-old son, Jeff. And the motive was simple: Jeff murdered his family because he wasn’t allowed to go to prom. Is Jeff Pelley…

Over four weeks in the winter of 1984, five women were assaulted at knifepoint in a series of attacks in and around the East End neighborhood of Richmond, Virginia. The police quickly zeroed in on their suspect, Thomas Haynesworth, after every one of the victims identified him as the preparator. But can eyewitness identification always…

Two three-year-old girls from Noxubee County, Mississippi, are found murdered under very similar circumstances. They were both abducted from their homes, sexually assaulted, and killed. Their killers also left behind a strong piece of forensic evidence: a bitemark. But despite their similarities suggesting the same person was responsible for both crimes, two separate men were…

It’s a murder still widely talked about today: the 1996 unsolved murder of hip-hop artist Tupac Shakur. Although an arrest was recently made in the case, some people wonder if we’ll ever know what happened that night in Las Vegas. And if forensic evidence can still be tested in the case. Who murdered Tupac? Episode…

In 1979, four children from Geylang Bahru, Singapore, were found murdered inside their home with multiple stab wounds and their bodies stacked on top of each other. Although the police received a lot of tips, the murders remain unsolved today. Is there still hope for advancements in forensic science to finally crack this mystery? Episode…

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…