According to the Missouri State Highway Patrol, a car driven by 19-year-old Jeremy Johnson of Harrison, Arkansas left the roadway and struck the median.
Passenger Diondre Johnson was ejected from the vehicle and pronounced dead at the scene.
A passing semi-truck hit Johnson's car...killing McCrimmons.
Jeremy Johnson was airlifted to a Tulsa hospital with serious injuries.
Authorities say as he was moving away from the crash, he was struck by a vehicle on eastbound I-44.
Another passenger in the car, 19-year-old Patrick Holt of Benton, Arkansas, also suffered serious injuries.
Holt is a golfer at Missouri Southern.
The crash happened on eastbound I-44, 2 miles east of Sarcoxie just before three this morning.