There are two likely scenarios. The first, Oswald acted alone. The second, it was some kind of conspiracy. I have too many questions that have never been answered to make a definitive conclusion as to which. For instance, a Carcano bullet was found laying on a stretcher that transported the Governor to the hospital. In all your shooting experience (anyone?) have you ever found a bullet that went through a deer, boar, moose, anything, laying on the ground? The rarity of that happening should at the very least suggest that it is just possible that someone placed it there. Another question: Why was Oswald holding a newspaper when he was photographed(the one where he stated that it was his head superimposed upon someone else)? Why would anyone hold up a newspaper? For what possible purpose? In folklore, it is used to establish a date...however, in that case the newspaper was folded and the headline could not be read. Why did Ruby keep insisting that he could not talk in the Dallas police environment and begged to be taken to D.C. where he would be safe? Why did telephone records indicate that Ruby's calls to the Mafia in Chicago increased by several hundred percent just before the assassination? Who were the three well dressed and atypical (clean shaven young adults, 30ish) hobos found in the railroad car just after the assassination? If a person cannot come up with many questions about the strange things that happened in relation to the assassination, they do not have an inquiring nature. I am not saying a conspiracy did exist, but without the many questions being answered I sure cannot state without reservation that it did not. Unless of course, it was space aliens as you say. I thought that this was a serious discussion.