A race car driver was killed Saturday night when he was hit while on foot by NASCAR driver
Amateur video of the incident shows racer Kevin Ward Jr. stepping toward Stewart's car at the Lucas Oil SuperSprint feature race after it appears Stewart cut off his driving line and forced him into the wall, causing him to spin out.
“The next thing I could see, I didn't see (the other driver) anymore,” witness Michael Messerly said. “It just seemed like he was suddenly gone.”
Stewart, 43, has been "fully cooperative" with the investigation, sheriff's officials said. The Associated Press reported that according to Sheriff Philip Povero, the investigation is not criminal.
Messerly, the spectator, said Saturday's crash appeared to be the result of "a number of bad decisions" and not "any intent on Tony Stewart's part."
Ambulances, fire trucks and police arrived within moments, Messerly said. Fans filed out in stunned silence, he said.
Ward's website said he began racing go-karts in 1998 at age 4, but didn't start driving sprint cars until 2010. The 20-year-old from Port Leyden, New York, was Empire Super Sprint rookie of the year in 2012 and this year was his fifth season racing the Empire Super Sprints.
The Associated Press contributed to this report.