A D.C. police officer was shot and killed in West Baltimore, and now the reward for information in his death has doubled.
The ATF is offering $20,000 for details in Sergeant Tony Mason Jr. death.
RELATED: Off-duty D.C. police sergeant fatally shot in Baltimore
Early Saturday, Mason was off-duty and sitting in a car with a woman on Elgin Avenue, when someone opened fire on the car.
Mason died at the hospital, the woman is expected to recover.
