From the Lawrence Daily Journal-World for March 11, 1972:

Four students from Haskell Indian Junior College had been treated at Lawrence Memorial Hospital and released after a downtown disturbance just after midnight. According to reports, officers had been called to the scene of a fight in the Old Mission Inn, near 19th and Massachusetts, after an argument had escalated between three Topeka men and other patrons. After employees asked them to leave, the Topeka men had walked across the street to their car while the argument continued, with rocks, bottles, and cans being thrown by the men and by tavern patrons, some of whom were later identified as Haskell students. The Topekans then began striking out at the others, using objects retrieved from their car. One of the Topeka men then started his car and began driving it in circles, striking persons in the street. Police later estimated that as many as 30 people may have been in the street at this point. After the other two men got into the car, the driver had attempted to head north and had gone about three blocks before being stopped by police. The three men had been arrested, the driver on charges of disorderly conduct, failure to yield to an emergency vehicle, resisting arrest, and two counts of aggravated assault. His two passengers had been charged with aggravated battery and disorderly conduct.