Roy McClellan of Las Vegas was killed Nov. 17 while hitchhiking on State Route 160 in Pahrump, about 50 miles (80 kilometres) west of Las Vegas.
His widow, Denise McClellan, told KSNV-TV she can’t understand why her 52-year-old husband survived the shooting, only to die in a hit-and-run. She says the mass shooting “was messing with his head” and that he was undergoing therapy.
WATCH: 546 injured in Vegas shooting; 501 have been discharged: Police
The Nevada Highway Patrol says it is seeking the driver of a Chevrolet Camaro with front-end damage.
Stephen Paddock unleashed gunfire at an outdoor music festival from the 32nd floor of the Mandalay Bay hotel-casino before killing himself.
WATCH: Night sky fills with lanterns to honour Las Vegas shooting victims