Gabriel Carlos Turner was 46 when he was killed by a stray bullet in Southeast Washington, D.C., on March 24, 2016. He had just finished breakfast with his mother and was walking through a courtyard on the 2600 block of Birney Place SE on his way to his job as an FBI custodian, a position he had held for 15 years, when a street confrontation escalated and a single gunshot struck him. He was taken to a hospital and pronounced dead.

Police treated the case as a homicide. Investigators say the shooting resulted from an attempted robbery and that Turner was an unintended victim. In April 2016 authorities arrested Kelby Ronald Gordon, then 29, and charged him with second-degree murder while armed. Surveillance footage and witness statements, including from a former partner of Gordon, were cited in the investigation.

Did anyone in the neighborhood know Gabriel Turner or see activity in that courtyard that morning?