Overview
- The two-hour episode, What the Killer Left Behind, airs Friday, Jan. 30 at 9 p.m. ET on ABC and streams the next day on Disney+ and Hulu.
- Plasse, 20, was found in her Chicopee apartment in 2011 after a violent struggle, with extensive blood evidence, a window broken from the inside, and a Nike Air Max size 7.5 bloody footprint.
- Reviewing scene photos, investigators spotted a bedroom whiteboard reading "Dennis waz here 8/11/11," leading them to Dennis Rosa-Roman, whose DNA matched material under Plasse’s fingernails and whose palm print matched the window.
- Rosa-Roman was convicted of first-degree murder in 2016 and given life without parole, his bid for a new trial was denied in 2020, and a 2024 ruling on offenders under 21 now raises the possibility he could be released as early as 2028.
- The case also prompted accountability after two officers shared unauthorized photos of the victim, leading to a 2015 settlement and the 2022 passage of Massachusetts’ Amanda’s Law restricting first-responder photography.