In the predawn hours of September 22, 2015, Derrick LaMar Patterson, a 46-year-old Black/African American man, was found shot to death in a driveway near Owens Avenue and D Street in central Las Vegas. Police were called just after 1 a.m. and discovered Patterson suffering from multiple gunshot wounds; the Clark County coroner’s office later ruled the death a homicide.

Initial reporting said investigators had no suspects or clear motive and the case remained open for months as detectives sought leads. In January 2016 authorities arrested 26-year-old Marquic Williams, also known as Red, alleging he killed Patterson in a revenge plot after believing Patterson — known to Williams as Q — had broken into his apartment and stolen drugs and money. Prosecutors said a .38-caliber revolver used in the slaying was linked to a prior shooting involving Williams; Williams was held without bail and faced charges including murder with the use of a deadly weapon and conspiracy to commit murder. Authorities also indicated they were searching for a possible second suspect.

Does anyone have information about Patterson, his movements in September 2015, or possible witnesses in that neighborhood?