On the afternoon of May 15, 2023, a verbal dispute outside a 7-Eleven in the 3900 block of Martin Luther King Jr. Avenue SW in Washington, D.C. escalated into a fatal shooting that killed 64-year-old Christopher Callahan, a Black resident of Southeast D.C. Surveillance footage shows Callahan sitting on his walker during the exchange. After a verbal confrontation an assailant struck him over the head with a duffle bag, then pointed the bag, which concealed a rifle, at Callahan’s head and fired. The shooter walked away, returned, again pointed the bag at Callahan, and fled.

Officers from the Metropolitan Police Department’s Seventh District found Callahan with a gunshot wound; DC Fire and Emergency Medical Services pronounced him dead at the scene. An arrest followed the next day, May 16, 2023, when 31-year-old Terry Thompson, with no fixed address, was taken into custody and charged with premeditated first-degree murder while armed, possession of a firearm during a crime of violence, and unlawful possession of a firearm by a convict. He was evaluated at St. Elizabeths Hospital.

Was anyone in the neighborhood that afternoon able to see what led to the confrontation or the shooter’s movements before or after the incident?