Derrick J. Lee, 30, was found dead of apparent gunshot wounds in Mariposa Park in Tucson on the morning of August 22, 2018. A 911 call came in about 5:45 a.m.; officers located Lee near Aviation Drive and Third Street and he was pronounced deceased at the scene.

Tucson Police gang detectives took over the investigation because Lee had known gang affiliations, but authorities have not said whether the killing was gang-related. Investigators have been pursuing leads and the department has asked the public to submit anonymous tips to 88-CRIME. No arrests or suspects have been publicly announced.

Anyone who knew Derrick, saw activity in or around Mariposa Park that morning, or has information about this shooting is asked to contact 88-CRIME.