Update Tuesday 4 p.m.
A Seymour man who was pronounced dead after a crash Friday afternoon likely suffered a medical issue before his car veered off the road, investigators found.
Witnesses told Alcoa Police Officers that the driver, later identified as Andrew L. Henry, was going northbound on Hall Road when his vehicle veered off the road, crossed through several intersections and a large field before eventually crossing Hall Road again and stopping.
When officers arrived they found Henry, 68, unrestrained and slumped over in the passenger seat with his feet near the pedals.
After crews broke the window to remove him they began CPR because he wasn't breathing and had no pulse.
Once he was taken to the hospital, doctors pronounced him dead.
Investigators believe Henry may have suffered a heart attack or stroke before the incident.
The Sevier County Sheriff's Office is looking for a missing Seymour man who has not been seen for three days.
Officials say 68-year-old Andrew Lee Henry was last seen at his home on Friday, Nov. 4, and has not been heard from since that day. He may be driving a 2015 grey Nissan Quest van with the Tennessee license plate A11 92Y.
Henry is a white male, 6-foot, 2-inches tall, weighing 240 pounds. He has grey hair and brown eyes.
Anyone who sees or hears from Henry is asked to contact the Sevier County Sheriff's Office at 865-428-1899.