Sam Earl Briscoe Jr., 33, was shot and killed in Mesa, Arizona, on July 1, 2020, around 2 a.m. He was seated in the driver’s seat of his car at a Circle K on Dobson and Guadalupe when a man in the back seat spoke to him and a gunshot rang out. A struggle inside the vehicle continued and more shots were fired. Briscoe was taken to a nearby hospital and died about 30 minutes later.

A friend who had been in the passenger seat ran into the store and alerted employees. A witness outside saw a suspect running through the parking lot. Briscoe’s crossbody fanny pack, wallet, cash, and a handgun were later reported missing from the car. Investigators focused on 19-year-old Isaiah Lee Armstrong after the passenger said Briscoe had picked him up following calls and texts asking for a ride. Glendale police were later called when Armstrong allegedly barricaded himself and a caller said he’d confessed to killing someone at the Circle K; Armstrong was arrested and faced charges including murder and armed robbery.

Does anyone have information about Briscoe’s movements that night or about the items reported missing from his car?