Robbie Allen Head, 55, was reported missing on April 21, 2025, along with Tiffany Ann Williams, 44, and David Dewayne Walker, 42. Their home was found in disarray with large amounts of blood and fired gun casings, and the three were located dead on April 24 near a creek along Temple Hall Highway in northern Hood County.

The Parker County Sheriff’s Office and the Texas Rangers arrested three suspects. Trin Lawrence McKnight, 27, and Barrett Copeland, 19, were charged with capital murder; Michael Morris, 18, was charged with tampering with physical evidence and abuse of a corpse. Investigators described the case as drug-related, involving methamphetamine. Arrest records say McKnight identified accomplices and alleged Dennis Craig Alexander held the victims at gunpoint and shot them before their bodies were moved to the creek; Alexander was later exonerated.

The investigation is ongoing as authorities gather further evidence and build their case. If anyone knew Robbie Head, his routines, associates, or observed suspicious activity near Temple Hall Highway around April 21–24, please share what was seen with investigators.