An arrest has been made in the 2017 cold case murder of off-duty D.C. Police Sgt. Tony Mason Jr. in Baltimore. The suspect, an 18-year-old, was charged after investigators received a tip that led to a breakthrough in the case. According to officials during Wednesday's news conference, the suspect became paranoid upon seeing Sgt. Mason with a woman in a car, mistakenly believing they might rob or retaliate against him due to his involvement in other robberies. This case will be the first prosecuted by a new unit in the Baltimore State's Attorney's Office, which focuses on cold cases using genetic genealogy technology. D.C. Police Chief Pamela Smith joined Baltimore officials in announcing the charges.
Who killed D.C. Sgt. Tony Mason Jr.? After six years, a suspect was arrested. A tipster told investigators the teen saw Mason in a car, falsely believed he would “rob him or retaliate against him for all the robberies he was committing” and opened fire. https://t.co/vRYjLQW9hG
Baltimore prosecutors have announced the arrest of a man in the cold case homicide of an off-duty Washington, D.C., police officer in 2017. https://t.co/cob2eF9kjk
Alleged killer of an off-duty Metropolitan Police sergeant charged by authorities in Baltimore https://t.co/HoP3fYjZ85
D.C. Police Chief Pamela Smith joined Baltimore officials as they announced charges for a man accused of killing an off-duty D.C. Police officer in 2017. https://t.co/zUHk4BLZfp
Inmate accused of 2017 cold case killing of off-duty DC cop on date: docs https://t.co/DGDSSNPasy https://t.co/dN0sw1AE14
Baltimore prosecutors on Wednesday announced the arrest of a man in the cold case homicide of an off-duty Washington, D.C., police officer in 2017. https://t.co/YmvIsqa1Fl
Suspect charged in 2017 cold case murder of DC police officer in Baltimore https://t.co/gbiAW3Z0Es
Tip leads to arrest in cold case killing of off-duty D.C. police officer in Baltimore https://t.co/p5qufnRWgw
An 18-year-old suspected of killing an off-duty D.C. officer in Baltimore “became paranoid” when he saw the officer and a woman sitting in a car and falsely believed they would rob him or “retaliate against him for all the robberies he was committing." https://t.co/4daOBihSVB
A Baltimore man was recently charged with killing an off-duty D.C. Police officer in Nov. of 2017, officials said during Wednesday's news conference. https://t.co/zUHk4BLZfp
Just In: Prosecutors announced an arrest in the shooting death of off-duty D.C. Sgt. Tony Mason Jr. in Baltimore in 2017. Investigators "never stopped following up on tips and tracking down leads." https://t.co/mcJXp3saHS
New: Charges in 2017 killing of off duty DC police officer will be first prosecuted by a new @BaltimoreSAO unit that will focus on cold cases and genetic genealogy technology https://t.co/lnbyH75p5u