Traffic rider David B. Jones, 36, died when his truck collided with another vehicle on Sunday evening.
The collision happened in the area of St Clair Avenue and South Main Street about 3:00pm.
Witnesses reported seeing a dark SUV drive away from the crash scene, while another car pulled up alongside.
Police said a black car with an interstate plate was in the opposite lane of the crash, travelling northbound on St Clair.
Mr Jones was pronounced dead at the scene.
“We’re still trying to piece together exactly what happened,” Insp Scott Miller, an officer with the Jacksonville Police Department, said.
An autopsy is scheduled for Wednesday.
Jacksonville Traffic Crash Facts: Jacksonton traffic crashes include vehicle crashes involving pedestrians, bicyclists, vehicles and other types of traffic.