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A 16-year-old boy charged with killing four people and committing several other violent crimes in D.C. was released from custody just weeks before the homicides because of concerns about the spread of the coronavirus, sources tell News4.

Michael Mason, of Southeast D.C., was arrested last week and charged in the killings of 31 year-old Terrance Griffin, 20-year-old Jaszel Henderson, 21-year-old Brea Moon and 18-year-old Antwuan Roach. All four young people were killed in Ward 7 and Ward 8 in April and May.

Mason was arrested in 2018 on a number of gun charges. He was held in youth custody until this March, when he was released because of concerns about the spread of the coronavirus.

Cmdr. Leslie Parsons, a Metropolitan Police Department veteran with more than 20 years on the force, called Mason’s alleged shooting spree “extremely disturbing.”

“He’s the only one I remember being that young with that many cases,” he said.

The killings began on April 7, with the shooting of Moon. Mason allegedly had been trying to shoot a man. That man ducked behind Moon and she was shot instead. Moon was taken to a hospital, where she died.

Mason lived in the 300 block of I Street SE, in a neighborhood of stylish townhouses close to the Navy Yard area. He’s charged with crimes — including five non-fatal shootings — in far Southeast.

Court documents say Mason was linked to the Avenue faction of the group Simple City.

Mason was charged as an adult with first-degree murder, assault with intent to kill and assault with a dangerous weapon.
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November 13, 2025

Michael Mason, 21, was sentenced October 31, 2025, to 28 years and eight months in prison in connection with the shooting death of Brea Moon in April 2020 in Southeast Washington and the shooting death of Antwuan Roach in May 2020 in Northeast Washington, announced U.S. Attorney Jeanine Ferris Pirro.

Mason pleaded guilty to two counts of second-degree murder while armed on October 31, 2025.
With respect to the April 2020 homicide, according to the government’s evidence, Mason was riding in a stolen white vehicle that pulled into the BP gas station located at 4101 Alabama Avenue SE shortly before 10:30 p.m. on April 7, 2020. Minutes later, a gray sedan pulled into that same gas station with the victim, Brea Moon, in the front passenger seat. When the gray sedan left the gas station, the white vehicle followed. Shortly thereafter, the white vehicle pulled up beside the gray sedan and the defendant fired multiple gunshots at the gray sedan, including one that struck the victim and killed her.
With respect to the May 2020 homicide, according to the government’s evidence, on May 22, 2020, defendant Mason learned of Mr. Roach’s location and tracked him to the unit block of Anacostia Road NE shortly before 5:00 p.m. After locating Mr. Roach, the defendant’s vehicle pulled into an alley behind the 3800 block of East Capitol Street NE. As Mr. Roach stepped into the alley, the defendant fired at him and killed him.

Michael Mason was arrested and originally charged with first-degree murder while armed for the May 19, 2020, shooting death of Jaszel Henderson, 20, and Terrance Griffin, 31. However, these charges were ultimately dismissed as part of a plea deal.

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Terrance Griffin
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Jaszel Henderson
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Brea Moon
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Antwuan Roach
 
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