Asheville Police are looking for a 17 year-old they say may be armed and dangerous. Patrick Michael Koerschner was last seen Tuesday (6/26) around lunch time, walking in the area of Griffing Boulevard in North Asheville. He is described as a white male, 5'10", weighing 122 lbs. He has brown hair and brown eyes. Police say anyone who sees him should exercise caution and call APD at 252-1110.