An American Murder Mystery: The Staircase

Michael Peterson is accused of murdering his wife, Kathleen, whom he finds dead at the bottom of a staircase at their home.
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Lightning Strikes Twice
S1 E2

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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Reversal of Fortune
S1 E3

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.