Brentley Joseph Mueller, a 42-year-old white man, was fatally shot on February 6, 2026, at an apartment complex in the 3700 block of S. Pennsylvania Avenue in Oklahoma City. Police were called about 11:17 p.m.; officers found Mueller with gunshot wounds and he was taken to a hospital where he later died. The circumstances leading up to the shooting were unclear in the initial report, and his death was reported as the ninth homicide in the city for the year.

Mueller had been engaged to be married in April 2026; his fiancée said he was turning his life around and was deeply loved. A suspect, 21-year-old Santana Orlando Mathis, was arrested on February 10, 2026, and booked into the Oklahoma County Jail on charges of first-degree murder and unlawfully carrying a weapon, with bail set at $5 million.

If anyone knew Brentley, his routines, or saw activity near the 3700 block of S. Pennsylvania Avenue on the night of February 6, please share information with investigators.