The Okaloosa County Sheriff’s Office is trying to locate a suspect after a Fort Walton Beach man was shot and killed Wednesday evening in Okaloosa County. The shooting happened on Vincent Lane around 7 p.m. Responding deputies found the body of 48-year-old Earnest Riggs Jr. inside a rental work truck parked in the street. Two workers who had been in the truck during the shooting stayed on scene. Residents told investigators a man in black had been walking around in the area for an hour or more before the shooting took place. Anyone with information about the shooting is asked to contact the Okaloosa County Sheriff’s Office or call Emerald Coast Crime Stoppers at (850) 863-TIPS. Emerald Coast Crime Stoppers has partnered with the statewide office to increase a reward to $9,500.