The Bearded Man, the Shotgun Man, Is the Fair Haired Guy.

A robbery gang was operating in the indianapolis area. They had already hit several other burgher shefs and fast food restaurants. After getting a hot tip about one of these dudes, dubbed the shotgun an, they were serving a warrant to this dude's next door neighbor. His son came forward years later saying his father had given him a death bed comfession that he had done it. The case is solved. We know who did it. We just can't prove it.