maybe the mob had a small part in this, but i doubt they were the ones directly responsible. that blame should fall on whatever shadow government agency got the go ahead. the fact is that this wasn't like in the days of lincoln where someone could just walk right up to the president and shoot him easily,(although possible,look at reagan) lots of planning had to go into it. it had to have been an inside job as the security was top notch at this point in time and regardless what you believe, the official story just has too many holes in it.