PORTLAND, Ore. (AP) — A Multnomah County grand jury has indicted a man on nearly three dozen counts related to a human sex trafficking investigation and Portland police detectives believe there may be more victims. KGW-TV reports 32-year-old Johnel Johnson faces charges including multiple counts of rape, kidnapping, compelling prostitution and strangulation. The Portland Police Bureau and Multnomah County District Attorney’s Office said the investigation started in February when Johnson allegedly robbed, kidnapped and repeatedly sexually assaulted a person. Police say he was also then linked to another similar incident and in that case threatened to make the victim “engage in forced prostitution acts.” He was arrested March 1. It wasn’t immediately known if he has a lawyer.