From a statement released by the Tuscaloosa Police Department to The Tuscaloosa News:
"Officers told the crowd multiple times to disperse. Officers warned one individual [Tony Brown] multiple times to back up and leave the parking lot. The individual would walk a few steps away and then would walk right back towards officers. The officers warned the individual that if he did not leave the parking lot he would be arrested. The individual yelled threatening profanity at the officer and stepped toward the officers again. At the time the officer grabbed the suspect to take him into custody. The suspect pulled away resisting officers. Officers used pepper spray on the suspect and forced him to the ground and took him into custody. Both suspects were transported to the Tuscaloosa County Jail."
Alabama Crimson Tide freshman CB Tony Brown arrested - ESPN