Airing Friday, January 30, 2026, ABC’s 20/20 episode “What the Killer Left Behind” takes viewers inside one of Massachusetts’ most haunting cold cases—the 2011 murder of Amanda Plasse. The special report, led by Ryan...
Amanda Plasse was a 20-year-old woman from Chicopee, Massachusetts, known for her lively personality, artistic flair, and deep love for those around her. Petite in stature—standing just over five feet tall—she had a presence...
Dennis Rosa-Roman was 20 years old when he brutally murdered Amanda Plasse in her Chicopee, Massachusetts apartment in August 2011. At the time of the crime, Rosa-Roman lived just a few blocks away from...
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