One person is dead after a rollover crash in Williamson County, Illinois on Thursday morning, Oct. 24. 2019. The Williamson County corner pronounced a 30-year-old Marion, Ill. man dead at 12:10 a.m. The man died after a rollover crash on Fowler School Road west of Outlaw Road. He was a backseat passenger in the vehicle. Officials said the crash happened at 11:37 p.m. The vehicle was traveling eastbound. Another passenger was taken to an out of state hospital. The driver was taken to a nearby medical center. The crash is still being investigated by police.