Antigo police used surveillance video to track down a stolen bike and arrest the thief on Monday afternoon. That mountain bike was reported missing from outside the Antigo Public Library. It had been parked there by an 11 year old boy close to 3:30 pm, and when he came out it was gone. Police and library employees reviewed surveillance video, and saw a woman taking the bike. They were able to identify the woman, then tracked her down to a home on Second Avenue. They arrested the woman and the little boy got his bike back.