Alexander Antonyo, 26, of Dublin, California, was found dead on November 28, 2020 in what investigators described as a violent incident. Authorities concluded Antonyo had been fatally shot, and initial reports characterized the killing as deliberate and targeted.

Investigators identified several potential suspects and said Antonyo knew one of them. An Alameda County sheriff’s deputy, Devin Williams Jr., was arrested in connection with the shooting; prosecutors charged Williams with first-degree murder and related counts. Reports say Williams was off-duty at the time and alleged to have entered Antonyo’s residence and shot him in what has been described as an execution-style killing.

If anyone knew Antonyo, his routines, or had information about his relationship with the person arrested, please share what you know with investigators.