Infamous US gangster Whitey Bulger was almost caught in London

This from an interesting piece in the Atlantic:

London (September 2002)

Special Agent Richard Teahan of the FBI's Bulger taskforce says that before last night, this was "the last known witness sighting of Bulger." It was also the closest he thinks agents got to apprehending him. "I think we were close then," Teahan said. Bulger was reportedly alone and walking along Piccadilly Square.