Baltimore Cold Case Conviction | Annapolis News

Annapolis News Today | 2 Min News | The Daily News Now! · Jul 30, 2026 · 1m

Dion Thompson just got convicted of first-degree murder for killing DC Metro Police Sgt. Tony Mason Jr. in a 2017 shooting — the first case ever prosecuted by Baltimore’s Cold Case Homicide Unit. The off-duty officer was killed in his car in the Panway/Braddish Ave. neighborhood, while a woman passenger was wounded. After nearly nine years, justice finally arrived, thanks to relentless work by police, FBI, and ATF. Thompson also faces conspiracy and attempted murder charges, and if sentenced as expected, he’ll spend life plus 33 years — a powerful message that violence in Baltimore won’t go…