The David Peterson Case

I am still watching the 2022 mini-series, "The Staircase", about this famous case, and I have not yet watched the earlier documentary. But I want to get the basic facts in mind before expounding further on this fascinating case.

Th heart and soul of this case is the amazing blended family that MIchael Peterson shared with his deceased wife, Kathleen. The miniseries doesn't always make the relationships clear. Todd and Clayton were Michael's sons with his first wife. Margaret and Martha were daughters of the Ratliffs, a couple who were friends with Michael and his first wife when they lived in Germany. After the Ratliffs both died, the Petersons took the girls in and raised them as their own. Caitlan was Kathleen's only bilogical child by her first husband. These kids were all 20-somethings at the time of Kathleen's death, and were all compellilng characters in their own rights.

Kathleen died in a staircase fall in Decmeber of 2001, and her husaband Michael was convicted of murdering her and started serving a life sentence two years later. That conviction was vacated in 2011 when a judge found that a key prosecution witness, forensic blood-spatter analyst Duane Deaver, had lied on the stand about the evidence and about his qualifications. In lieu of going to trial again, Michael opted to enter an Alford plea and was sentenced to time served.