RAPID CITY, S.D. – The man arrested on his way to the Sturgis Motorcycle Rally with guns and possible explosives in his car made a court appearance Wednesday.
John Charles Matthew Mann , 42 of Washington state, pleaded not guilty to one count of making terrorist threats and one count of possession of a hoax substance or device to cause fear. He was arrested after a routine traffic stop in Butte County.
Court documents indicate law enforcement found two A.R. 15 rifles, body armor, three handguns, bomb making material and a device that appeared to be a pipe bomb in his car.
Mann is being held on a $250,000 cash bond.
He is scheduled to back in court for a bond hearing on September 20.