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OSU Homecoming Parade Crash

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Homecoming Parade-Crash

Emergency personnel respond after a vehicle crashed into a crowd of spectators during the Oklahoma State University homecoming parade, causing multiple injuries, on Saturday, Oct. 24, 2015 in Stillwater, Oka. (David Bitton/The News Press via AP) MANDATORY CREDIT

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APTOPIX Homecoming Parade-Crash

Emergency personnel and spectators respond after a vehicle crashed into a crowd of spectators during the Oklahoma State University homecoming parade, causing multiple injuries, on Saturday, Oct. 24, 2015 in Stillwater, Oka. (David Bitton/The News Press via AP) MANDATORY CREDIT

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APTOPIX Homecoming Parade-Crash

A damaged police motorcycle rests in the intersection after a vehicle crashed into a crowd of spectators during the Oklahoma State University homecoming parade, causing multiple injuries, on Saturday, Oct. 24, 2015 in Stillwater, Oka.(AP Photo/Brody Schmidt)

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Homecoming Parade-Crash

A damaged police motorcycle rests in the intersection after a vehicle crashed into a crowd of spectators during the Oklahoma State University homecoming parade, causing multiple injuries, on Saturday, Oct. 24, 2015 in Stillwater, Oka.(AP Photo/Brody Schmidt)