Waukesha officials said the bicycle of missing 15-year-old Kathryn Stalbaum has been located because of a citizen tip. That development was revealed in a news conference on Thursday afternoon. Officials said in the news conference they are looking over the bike for any evidence that might help lead to Stalbaum. But they would not say where the bike was located. Officials also said they located Stalbaum’s teal backpack. It was found in her school locker. We have a picture of Kathryn Stalbaum on our website under the local news tab. If you should see her in the Washington County area or have any information to her whereabouts please contact the Waukesha County Communication Center at 262-446-5090.