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When a paramedic and mother is found dead and covered in paint in the basement of her Massachusetts home, investigators must work tirelessly for 18 months to find the person responsible. (Repeat).

Life is good for 12 year-old Garrett Phillips, until he's brutally attacked while home alone. His killer jumps unseen from a window and investigators are left with a vexing mystery that rattles the otherwise peaceful village of Potsdam, N.Y. (Repeat).

Teenagers Rebecca Bender and Bekah Charleston fall for men who seem to care about them. Instead, the girls are lured into human trafficking and coerced into prostitution. (Repeat).

A case of stolen identity is unearthed by forensics as the police investigate the death of a man in a garage fire. (Repeat).

A woman is stabbed to death in the bedroom of her in-law's house just one month after her husband heroically rescued her and their son from a house fire. It appeared to be an intruder who committed the crime, but the lack of evidence convince the police that the victim knew the killer. (Repeat).

A man's apparent suicide is investigated. A turkey baster and an exhumed body are among the clues that lead the police to discover it was actually a murder. (Repeat).

Advanced forensics aid the police in their search for a serial killer targeting gay people in New Jersey and New York. (Repeat).

A surprising suspect emerges in the murder of a young bride-to-be. (Repeat).

Forensic evidence in the case of a missing teen illustrates the tragedy behind a decision to play hooky. (Repeat).

An investigation into the deaths of an Ohio mother and her two daughters, whose bodies were found floating in Tampa Bay after the three went missing during a Florida vacation. (Repeat).

A case involving the horrific murders of four suburban teens is the focus. (Repeat).

A college student is found murdered in her apartment and her boyfriend becomes the prime suspect, but DNA evidence says otherwise. (Repeat).

An investigation of three deaths leads the police into the world of Internet dating. (Repeat).