>> the suspect's name is jack rubenstein, i believe. he goes by the name of jack ruby. >> and here an associated press still picture of the moment, the split second as the shot was fired. this is the man dallas police have identified as jack rubenstein, and this, of course, is lee harvey oswald. you see the gun in the hand of ruby and just about to be fired. >> i know my own feelings were, and i think they were widely shared, by many if not most americans, this can't be coincidental. the assassin is assassinated in the police station. what in the hell was going on? >> just learned from city hall from a very authoritative source that police are working on the assumption that there indeed is a connection between jack ruby and lee oswald and that in some manner of speaking, oswald's