Deion Patterson is charged with one count of murder and four counts of aggravated assault. Patterson had sought treatment at the Atlanta Northside Medical Midtown facility because he was dissatisfied with the care he was getting from the Department of Veterans Affairs. But when doctors wouldn't give him the anti-anxiety drug Ativan, Patterson became angry. He pulled a handgun and began firing then took off on foot, stole a vacant pickup truck idling at a gas station and drove it north to Cobb County. He was finally arrested after a foot chase.