Michael G. Callahan, a 48 year old Alexandria man, was arrested in connection with an incident of indecent exposure on the Chief Ladiga Trail, following a highly publicized search.  Callahan was said to have exposed himself on February 21 to a pair of women walking along the northern end of the trail.  Witnesses chased the suspect, who was wearing a nylon stocking over his head, through the woods following the incident and watched as he fled the scene in a red Toyota truck.  Witnesses were able to take down the license plate number, which led officers directly to Callahan's door.  He is free on $841 bond and is scheduled to appear in court March 19.