So was Oswald some random freak (I share his birthday) who took his opportunity at his 15 minutes of fame or not? He definatly seems to be a loner.. wallowing in disappointment and respite. This is not to say however that he did not have room to be manipulated.
Was Jack Ruby really some half-wit who was so blinded with patriotism so as to murder the man in front of all the press cameras?
I can see that. However.. the man did own night clubs... which means that he couldn't really be so dumb. Perhaps someone put him up to it... but there are some bits of evidence that seem to be planted.. such as Ruby happening to wire money to one of his strippers right before he shot Oswald.