‘The Staircase': What Happened to Blood Spatter Analyst Duane Deaver After the Case?

  • The Wrap
(Note: This post contains spoilers for the Netflix series “The Staircase,” so you might want to finish it before reading on.)

One of the key figures in the long-running case of Michael Peterson in “The Staircase” is Duane Deaver, a blood spatter analyst who worked for North Carolina’s State Bureau of Investigation in 2002 when the case went to trial.

Deaver’s expert testimony is a major part of what lead to Peterson’s conviction for the murder of his wife, Kathleen Peterson, in 2001. The blood spatter expert insists in “The Staircase” that the patterns seen in the staircase of the Peterson home were the result of Kathleen Peterson being beaten to death. Though Peterson maintained his innocence and the defense presented blood spatter experts of its own, the jury convicted Peterson of first-degree murder in 2003, and sentenced him to life in prison.

It wasn’t until eight years later,
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