Columbus police are searching for former Ohio State running back Bri’onte Dunn, who was charged Friday with domestic violence and assault. An arrest warrant has been issued. Dunn allegedly hit and choked his girlfriend on July 17 at the woman's northwest side apartment. Court documents also indicate the alleged victim filed for a civil protection order shortly after the incident. Dunn was kicked off the team on July 18 for an undisclosed violation of team rules.