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An American Murder Mystery: The Staircase

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Investigation Discovery's "American Murder Mystery" franchise presents the confounding case of Kathleen Peterson, who in 2001 was found dead at the bottom of a staircase in her North Carolina home. Investigators homed in on her husband, novelist Michael Peterson, who claimed it was an accident. This three-part special comprehensively delves into Kathleen's death and Michael's trial for murder. It explores shocking theories -- including one involving an owl -- and surprising secrets and includes interviews with the case's key players, as well as legal experts, jurors and reporters who covered it.

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Michael Peterson's defense unveils a long sought-after piece of evidence, catching the prosecution off guard; bombshell revelations about an expert witness threaten to unravel the entire case and give Peterson a shot at freedom.
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Stunned investigators discover that Michael Peterson's friend, Liz Ratliff, was found dead at the bottom of a staircase 16 years ago; the trial begins with experts battling over the interpretation of blood spatter.
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Investigators discover novelist Michael Peterson clutching his dead wife, Kathleen, at the bottom of their back staircase; Peterson insists her death is the result of a tragic fall, but investigators believe otherwise.

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