Zachary Aaron Williamson, a 41-year-old White man, was shot and killed inside an apartment at the Preserve at Westover Hills complex in San Antonio on April 6, 2023, just after 2:30 a.m. The apartment belonged to his 23-year-old ex-girlfriend, Israel Reyes, with whom he shared an eight-month-old child. Reyes called 911 saying she had shot Williamson in self-defense and that a protective order barred him from being at her home.

Police found Williamson deceased in the dining room from a single gunshot to the head. An autopsy showed he also had numerous other injuries, including 16 cuts and puncture wounds to the top of his head that a medical examiner said were inflicted in the weeks before his death and possibly made with the grip or magazine of a handgun. Witnesses, including Reyes’s sister, disputed Reyes’s account and alleged prior assaults on Williamson.

Investigators concluded the evidence did not support self-defense. Reyes was arrested April 19, 2023, and charged with murder; she was later acquitted by a Bexar County jury in May 2025. The death remains officially unsolved.