CAMBRIDGE, Mass. — Two Harvard Law School professors say they are representing the Harvard undergrad seen in a video being punched several times by one police officer as others subdue him.Ronald Sullivan Jr. and Dehlia Umunna, the director and deputy director respectively of the law school's Criminal Justice Institute, said Tuesday that neither they nor their client, 21-year-old Selorm Ohene, intend to talk about the encounter publicly.They say Ohene continues to recover from injuries.