A fugitive from Detroit recently arrested for killing his punk rock singer roommate back in 1993 has been described in news reports as a “ghost” because he was able to elude the authorities for more than 30 years. But during that time, Richard Werstine was no stranger to police. While he was on the run, Werstine was arrested several times and was even shot in 1999 during a confrontation with the police in Flagstaff, Arizona, according to the U.S. marshal who tracked him down and news accounts. “His arm is still messed up from that,” chief deputy U.S. Marshal Jimmy Allen told NBC News on Thursday.…