Isaac Caldwell Jr., 62, was fatally shot in the early morning hours of August 21, 2021, on the 2100 block of East Preston Street in East Baltimore. He was waiting for a bus to take him to his job as a driver for the Maryland Transit Administration’s Mobility paratransit service when police found him unresponsive at about 4:05 a.m.; he was taken to a nearby hospital and pronounced dead.

Caldwell’s killing was the third transit worker killed in Baltimore in less than a year, prompting union officials from the Amalgamated Transit Union to call for enhanced security and to describe the murder as a senseless act of violence. At the time of the shooting, police had not identified a suspect or determined a motive, and it was unclear whether the attack was related to his employment.

Does anyone have information about this case or recall activity in the East Preston Street area that morning?