On January 13, 2025, 19-year-old Zacchaeus Selby-Mukum was fatally shot in the parking lot of an apartment complex in the 2400 block of Laurelwood Drive in Arlington, Texas. Arlington police found him unresponsive with an apparent gunshot wound; he was taken to a hospital and later pronounced dead. Witnesses reported hearing an argument before gunshots, and detectives said high-risk activity was initially considered.

Investigators determined Selby-Mukum had arranged the sale of a handgun via a social media app and planned to meet a buyer that evening. Surveillance showed him approach a Nissan Altima that entered the complex; the driver exited, moved toward where Selby-Mukum was later found, then returned to the car and fled. Witnesses identified 17-year-old Joshua Robinson as the driver, phone records showed he called Selby-Mukum just before the Altima arrived, and Robinson was arrested on March 11, 2025, and charged with one count of murder.

Selby-Mukum, a Black male, had survived the 2021 Timberview High School shooting when he was 15. The motive remained unclear as of these events; detectives believe a dispute over the firearm transaction may have led to the shooting. If anyone knew Zacchaeus, was at Laurelwood Drive that evening, or has information about the transaction or the Altima, please come forward.