The Hargans were a typical suburban family until one day, devoted mother Pamela was gunned down in her own home and her youngest daughter, Helen, was found dead upstairs. 48 Hours correspondent Peter Van Sant unpacks the web of evidence behind the Hargan killings, revealing motives of sibling rivalry and a family fortune in this new 6 episode series.

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When Marty Tankleff was convicted for murdering his parents in 1990, some people still had their doubts about his guilt, including Jay Salpeter, a retired detective turned private investigator. Jay found a new witness who claimed he was the getaway driver for two hitmen who had been hired to murder the Tankleffs. After nearly two decades behind bars, Marty finally got another shot at freedom. In this season finale, Erin Moriarty and retired 48 Hours producer Gail Zimmerman discuss the conclusion of Marty Tankleff's wrongful conviction case and why it's one of the most memorable stories they've ever reported.

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On September 6, 1988, a wealthy couple, Seymour and Arlene Tankleff, were brutally attacked and killed in their home on Long Island, New York. The main suspect was their 17-year-old son, Marty, who was the sole survivor in the house. Detective James McCready was convinced Marty was to blame and prepared a written statement for him to admit he killed his parents. But the physical evidence at the crime scene didn't match the murder weapons described in Marty's so-called confession. Erin Moriarty and retired 48 Hours producer Gail Zimmerman go behind the scenes on a case that spanned nearly two decades and was one of the first wrongful conviction stories they worked on.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.