Incident with man suspected of University of Minnesota threats began a day earlier, warrants show startribune.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from startribune.com Daily Mail and Mail on Sunday newspapers.
Social media posts the man made Wednesday, while not containing explicit threats, led law enforcement to suspect that he was on the verge of reverting to past behavior, Chippewa County Sheriff Derek Olson told the West Central Tribune.
Social media posts by Joseph Mark Rongstad on Wednesday led law enforcement to suspect that he was reverting to past behavior. Efforts to locate him were not successful, despite help from family.