Tyler Knowles, 18, of Bartonville, was killed in a car accident on I-474 Wednesday night.
The accident happened just after 8 p.m. Wednesday on East bound I-474, about a quarter mile west of the Airport Road exit.
Peoria County Coroner Johnna Ingersoll says Knowles sustained and died from multiple injuries.
Authorities say a car driven by Dallas Hunter,16, left the roadway and hit a guard rail.
The passenger, Knowles, was pronounced dead on the scene.
Authorities say he did appear to be wearing a seatbelt.
The Peoria County Sheriff's office is investigating and toxicology results are pending.