3 of 20: Evidence Race

The Pelleys' next door neighbors remember critical details about the timeline leading up to the massacre and Delia learns the depths of mounting resentment between Jeff and Bob.

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Original detectives on the case remember tracking down 17-year-old Jeff Pelley at a theme park in Illinois and Delia dissects the first videotaped interview authorities conducted with the teenager.

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Diane Downs is convicted of shooting her three children in her car, driving them to the hospital, and claiming it was a carjacking gone horribly wrong. She, herself, had been shot in the arm, but investigators were suspicious of her story.

Nancy's expert panel weighs in: ...

After going public about the reopening of the Billy Halpern murder investigation, Detective Danny Smith receives a mysterious call from someone who claims to have insider knowledge about Billy's murder and other related homicides. This caller unveils the dark underbelly of the So ...  Show more

The murder of 19 year old Una Lynskey is set to be the subject of a Garda cold case review 52 years after she was snatched from a roadside in County Meath.But behind the mystery lie layers of scandalous allegations surrounding the Garda’s so called Heavy Gang - a team of interrog ...  Show more

Investigative journalist and former cop Scott Weinberger and Detective Danny Smith work together to expose the true motive behind a South Florida killing spree during the '80s, and uncover new evidence including the DNA of the killer. See omnystudio.com/listener for privacy infor ...  Show more