2015 Oklahoma State University homecoming parade crash

The incident occurred at 10:31 a.m. Central Time (15:31 UTC), during Oklahoma State University's annual Sea of Orange Homecoming Parade, which was being held that morning, leading up to that day's football game between the Oklahoma State Cowboys and the Kansas Jayhawks. After the parade had crossed the intersection of Hall of Fame Avenue and Main Streets (0.40 miles (0.64 km) east of Boone Pickens Stadium) on the university campus, where the parade was supposed to conclude, 25-year-old Adacia Avery Chambers – a native of Oologah and resident of Stillwater – drove her gray 2014 Hyundai Elantra south on Main at speeds above 40 miles per hour (64 km/h) into several barriers used to block off commuter traffic and then proceeded to hit an unmanned motorcycle belonging to the Stillwater Police Department, which was providing security assistance for the event; Chambers' car then careened into approximately 50 parade spectators before stopping when its two front tires popped the curb on the southwest corner of the intersection.[2][4][5][6][7]

Local paramedics and firefighters participating in the parade immediately began tending to those who were injured. Three of the victims who were hit by Chambers' vehicle in the collision – 23-year-old Nikita Prabhaker Nakal, a native of Mumbai, India who was an attending senior at the University of Central Oklahoma in Edmond; and husband and wife Marvin Lyle and Bonnie Jean Stone, both age 65 and residing in Stillwater – died at the scene; 2-year-old Nash Lucas, also of Stillwater, suffered severe injuries and died while being treated at The Children's Hospital at OU Medicine in Oklahoma City hours after the crash (his mother was among those injured in the crash). 47 other people – including nine children between the ages of 1 and 13 – were admitted for various injuries at Stillwater Medical Center; OU Medical Center and The Children's Hospital in Oklahoma City; and St. Johns Medical Center in Tulsa. The intersection was subsequently blocked off by Stillwater and university law enforcement.[3][5][6][8][9][10][11][12]

During a press conference on the crash held that afternoon, Burns Hargis, president of Oklahoma State University, stated, "Tragically we lost three. I hope we don't lose anymore. [...] The Cowboy family pulls together, unfortunately, we’ve had to do it before, and we're going to do it again." Stillwater mayor Gina Noble, who had served as the parade's grand marshal, later remarked that "We are heartbroken at this tragedy." Noble later commented, "We’ve never seen anything like this. [...] We’re shocked. We are definitely subdued in mood and we’re still trying to understand. [...] We will get through this together and figure out how to help those who need the help."[10][17]

The homecoming football game between Oklahoma State and Kansas – in which the Cowboys defeated the Jayhawks, 58-10 – was played as scheduled at 2:30 p.m. that afternoon; a pep rally originally set to be held before the game was cancelled, however. Before the game (which was televised nationally on FS1), Oklahoma Governor Mary Fallin, an alumna of the university who was in attendance at the game, led players and spectators in a moment of prayer as the United States flag flew at half staff in Boone Pickens Stadium.[10][18]

Fallin expressed condolences during a press conference that occurred during halftime of the game, "Our hearts and prayers go out with those who lost loved ones today, to those that were injured in the tragedy," and referenced the two previous tragedies involving the university during the past 14 years (the January 2001 plane crash that killed ten members of the Cowboys basketball team and the November 2011 plane crash that killed four people, including Cowgirls basketball head coach Kurt Budke and assistant coach Miranda Serna), adding "One thing I do know about Oklahoma people. They’re strong. They're very compassionate. They believe in prayer. They believe in comforting people and helping during a time of crisis and need. We’ll get through this again. But certainly it’s a very painful experience for those of us here, and certainly for all Oklahomans."[10]

• Video shows moment of Oklahoma State parade crash