Tony Anthony Mason Jr., a 40-year-old, 17-year veteran of the Metropolitan Police Department, was shot and killed in Baltimore in the early hours of November 4, 2017. He was sitting in a parked car on Elgin Avenue with a woman he was dating when a dark-colored car pulled up alongside them shortly after 12:30 a.m. An occupant called out and then opened fire. Mason was struck multiple times and later died at a hospital; the woman was shot in the leg and survived. Mason was off-duty, not in uniform and unarmed at the time.

The case went cold for years despite a $60,000 reward and investigators finding no links to gang or criminal activity in the victims’ backgrounds. A tip to Metro Crime Stoppers in early 2023 renewed the probe. In April 2024 Baltimore prosecutors charged Dion Thompson, who was 18 at the time of the shooting and 24 when charged, with Mason’s murder; Thompson was already in federal prison on unrelated drug and gun charges. Charging documents say the shooting stemmed from mistaken identity and paranoia, and identify two other alleged participants, one of whom later died in a car crash.

Did anyone in Baltimore in November 2017 see a dark-colored car parked or driving near Elgin Avenue around 12:30 a.m. that night?