A 22-year-old Portage man could be a suspect in nine sexual assaults on the UW-Madison campus and Downtown between Sunday night and Monday morning, police said. All of the female victims reported being groped by a man and gave similar descriptions of their assailant, said Madison police spokesman Joel DeSpain. Many of the victims are college-age women, he said. UW-Madison Police Sgt. Ruth Ewing said one victim is a university employee.