Bend Police name David Christopher Glass, 42, as a person of interest in a possible armed robbery in Bend. There was a robbery at the U.S. Bank on Third Street around noon yesterday.  A man told tellers he had a gun and demanded money. He fled the scene after receiving an undisclosed amount of cash.  Bend Police arrived shortly thereafter. Lt. Paul Kansky describes the suspect: "We do not have the subject in custody at this point. We do have a description of him.  He's approximately 35 to 50 years old, middle aged we'd say. Over six feet tall, black, long sleeved crew type shirt or something similar. Dark pants and wearing a red baseball cap with a symbol of some sort on the front of it." Kansky says several police units, including a K-9 unit, searched for the suspect who is still at large. He is considered armed and dangerous.