Overview
- The Suffolk County district attorney filed a nolle prosequi on March 18, formally dismissing the case and confirming there will be no retrial.
- A judge vacated Rosa’s 1993 conviction and ordered a new trial in 2023, and a retrial had been scheduled for May before prosecutors reversed course.
- The filing cites lost evidence, additional forensic testing, and changes in case law and jury instructions as factors that erode the Commonwealth’s case.
- Subsequent DNA analysis contradicted the blood‑type evidence used at trial, leading prosecutors in 2022 to concede a new trial was warranted after their own expert review.
- Defense attorneys highlight unreliable brief nighttime eyewitness identifications, a mismatch with a described missing tooth, and no evidence Rosa knew the victim, and they now call him Massachusetts’ 100th exoneree since 1989.