Columbus police officers accused of using excessive force on an Ohio State University student admit punching the young man up to seven times, spraying mace in his face, and hog-tying him, but say they did nothing wrong. In response to an October lawsuit filed by 21-year-old Joseph Hines, the officers say their actions came during an arrest and that they should be immune from being sued. The lawsuit accuses the officers of a "brutal, unjustified physical attack" on Aug. 29, 2012, that left Hines unconscious, led to a three-day hospitalization and caused permanent scarring. He's seeking a minimum of $75,000. Hines, of Jackson, Mich., was arrested after police say he was drinking beer with other students near Ohio State's student union. Hines denied drinking and pleaded guilty to littering.