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Lurking behind every murder is the truth. But what if the people involved in the case disagree on what the truth is and what really happened? We have to determine who is trustworthy, and who isn't. We must decide which details matter and which ones don't, and whose memories seem clear and accurate. This original series interviews people with conflicting perspectives on a real murder case to reveal the true Killer in Question.

Killer in Question is a series that is currently running and has 1 seasons (4 episodes). The series first aired on November 1, 2020.

Killer in Question is available for streaming on the website, both individual episodes and full seasons. You can also watch Killer in Question on demand atPhilo, Amazon, Vudu, FuboTV, Google Play, iTunes, Investigation Discovery online.

Sunday 9:00 PM et/pt on Investigation Discovery
1 Season, 4 Episodes
November 1, 2020
Crime, Documentary & Biography
7.8/10
Cast: Tim Halvorsen
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Killer in Question Full Episode Guide

  • On an early morning in 1997, Angie Nihoff is horrified to find her grandmother, Olga Parlante, murdered in her Florida apartment. The next 15 years will pull the family apart as members of the Parlante clan think one of their own kin is a killer.

  • When police find three people killed execution-style in the cooler of a Louisiana convenience store, it's just the start of the mystery. One man will give a series of conflicting confessions, leaving everyone to wonder what really happened that night.

  • On Nov. 17, 1990, two deer hunters are found shot dead in the woods of Michigan; eleven years later, cold case detectives arrest Jeff Titus on suspicion of murder, but the original detectives on the case believe Titus is innocent.