The investigators' shocking discovery: 16 years prior, Michael Peterson's friend Liz Ratliff fell to her death at the bottom of a staircase, her body found in a pool of blood.
Aired: Apr 8, 2018The investigation into Kathleen Peterson's death takes a dramatic turn as det...
Aired: Apr 8, 2018The investigators' shocking discovery: 16 years prior, Michael Peterson's fri...
Aired: Apr 10, 2018The defense presents a crucial piece of evidence, leaving the prosecution stu...
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Network: Investigation Discovery
Production Country: United States
Genres:Crime, Documentary
Currently you are able to watch "An American Murder Mystery: The Staircase" streaming on Investigation Discovery GO or for free with ads on Investigation Discovery. It is also possible to rent or buy on AppleTV, Amazon, Google Play, VUDU, YouTube online.
