Larry Billy Burton Marcum, a 41-year-old married father of five and a contractor, was fatally shot on May 19, 2021, in the Walmart parking lot in Fort Mohave, Arizona. The confrontation began after Marcum followed a motorcyclist he thought was driving recklessly along Highway 95 and escalated into a verbal dispute in front of the store. Both men reportedly drew handguns; Marcum holstered his weapon but the struggle continued.

During a physical altercation in which Marcum attempted to kick the motorcyclist, 23-year-old Jim Douglas Mosier of Bullhead City allegedly fired a single shot that struck Marcum in the upper chest. Bystanders provided first aid and emergency crews transported Marcum to a local hospital, where he died. One of Marcum’s sons was reportedly in the vehicle and witnessed the shooting. Mosier called 911, was later arrested after witness interviews and surveillance review, and was charged with Second Degree Murder.

If anyone witnessed the confrontation or has information about what led up to the shooting, please share details with investigators.