Tayvon Devonte Cummings, 22, was shot and killed in Southeast Washington, D.C., on the afternoon of Monday, May 16, 2016. Police say he was in an alley in the 4800 block of Texas Avenue SE when gunfire erupted; officers arrived about 12:55 p.m. and found him with gunshot wounds. Emergency medical personnel pronounced him dead at the scene.

A witness reported seeing Cummings on his knees firing a gun toward Benning Road before he was struck by return fire and collapsed. The witness said someone picked up the gun that had fallen from Cummings and ran from the scene. His death happened amid a pair of fatal shootings hours and blocks apart that investigators treated as possibly related, with detectives considering retaliation tied to a long-standing neighborhood dispute.

No arrests have been announced and no named suspects have been made public. A reward of up to $25,000 was offered for information leading to an arrest and conviction. Does anyone have information about Cummings, the alley on Texas Avenue SE, or those events that afternoon?