On the evening of December 22, 2025, Austin Police responded to a home in the Circle C neighborhood after a family member raised the alarm. At about 5:19 p.m. officers entered a residence on the 10400 block of O’Rourk Lane and found a chaotic scene: 20-year-old Trevor Shepherd and his 79-year-old grandfather, Charles Wagnon, had both suffered fatal gunshot wounds.

Detectives say the violence grew out of a domestic dispute. A verbal argument between Shepherd and Wagnon escalated, both men drew firearms, and investigators concluded they exchanged gunfire and struck one another. Emergency responders pronounced both dead at the scene. Police classified the incident as a double homicide and, because the two principals were deceased, did not identify any additional suspects.

Anyone who knew Trevor Shepherd or has information about the circumstances inside that home is asked to come forward.