A driver crashes into the Oklahoma State Homecoming parade, killing four people and injuring 34.

2015 Oklahoma State University homecoming parade attack

Fatal vehicle rampage in Oklahoma, US

The 2015 Oklahoma State University homecoming parade attack occurred on October 24, 2015, in Stillwater, Oklahoma, when Adacia Avery Chambers intentionally drove her sedan into a crowd watching the homecoming parade for Oklahoma State University–Stillwater on the university's…