evidence, none whatsoever. >> richard also discovered that police had only focused their attention on ruben after he was involved in an unrelated crime. >> i saw where ruben had been involved with a police officer in a shootout at some bar, not pertaining to this murder. >> i think ruben was arrested because of something that happened after that murder. he and a couple of his friends were at a bar shooting pool. and they had a conflict with an off-duty officer. he accidentally hit him with the pool stick. words were exchanged. >> the off-duty officer was joe de la luz, a 16-year veteran of the force. >> the officer showed him his weapons. he was in regular civilian clothes, so they didn't know.