A man who threatened to shoot police officers trying to talk him down from a construction crane sits in the structure's cab 150 feet above the Southern Methodist University campus in Dallas on Monday, May 28, 2012 (AP Photo/Dallas Morning News, David Woo)

Photo by: David Woo

A man who threatened to shoot police officers trying to talk him down from a construction crane sits in the structure's cab 150 feet above the Southern Methodist University campus in Dallas on Monday, May 28, 2012 (AP Photo/Dallas Morning News, David Woo)