Oswald in the doorway: the blog of the Oswald Innocence Campaign, by Ralph Cinque

Read this because it's riveting: 

Mr. BALL. Why did you go to the sixth floor?
Mr. WILLIAMS. Well, at the time everybody was talking like they was going to watch from the sixth floor. I think Billy Lovelady said he wanted to watch from up there. And also my friend; this Spanish boy, by the name of Danny Arce, we had agreed at first to come back up to the sixth floor. So I thought everybody was going to be on the sixth floor.

So, it turns out that Bonnie Ray Williams went up to the 6th floor because he thought there was going to be a party up there. 

Then, why did Lee Harvey Oswald (according to the official story) just assume that the 6th floor was going to be empty and all his to shoot Kennedy? 

Look, there were only two possibilities: either someone would be up there or not. And one person being up there would have been just as bad as ten. 

Now, at the time Oswald was supposedly planning this, he had no way of knowing which it was going to be: somebody or nobody. He knew people were working on the 6th floor. So, why wouldn't he assume that someone might stay up there, eat up there, and watch the motorcade from up there? Why is it reasonable to think he ever would have assumed that the 6th floor was going to be a safe haven for him to operate? Based on what? 

And we know it was a little after 8 when he arrived that morning, and there were already plenty of people in the building. So, what is the basis for assuming that Oswald had a free rein to hide his rifle on the 6th floor, that nobody was up there already? 

But, we have to assume that either no one was up there, or that one or more persons were up there, but they just didn't see him. And we also have to assume that no one saw him carrying the rifle on his way to the 6th floor.

Now obviously, someone seeing Oswald bringing a rifle to work that morning was going to be devastating to him. So, these are all the assumptions Oswald would have had to make in order to decide to go through with it:

1) I can bring a rifle to work in Buell Frazier's car without him knowing. I'll just tell him that it's curtain rods, and the dufus will believe it. 

2) I can sneak the rifle into the building and get it up to the 6th floor without being seen by anybody. No one will realize that I brought a rifle in. That I can count on.  

3) When I get to the 6th floor to hide the rifle, no one is going to be there. I'll be the first one there, so I'll have the whole floor to myself, even though I'll probably arrive late with Frazier, with us coming all the way from Irving, and him not being in a hurry.   

4) And if I'm not the first one there, I'll still be able to find a place to hide the rifle without being seen. No one will notice me doing it. 

5) It will be necessary for me to assemble the rifle and set up the Sniper's Nest with boxes of books, which will take time, but I can be certain that no one will be around during any of it. 

6) There are windows on the 6th floor which will give someone a clear view of Houston and a bird's eye view of the horseshoe turn onto Elm, and even as the motorcade proceeds down Elm, the viewing will still be pretty good. So someone might well decide to watch the motorcade from the 6th floor. In fact, there could be a bunch of people up there. But, I'm just going to ignore that possibility because there's nothing I can do about it, so what the hay. 

7) I can't shoot at Kennedy without sticking the rifle out the window some, and someone, or any number of people, could look up and see it. And that's especially true after they hear the first shot. But again, there's nothing I can do about it so might as well just hope for the best. 

8) Likewise, someone could get a glimpse of my face as well, and it's not like it would take X-ray vision. Oh well: no risk, no reward.

9) When I'm finished, I'll have to wipe my prints from the rifle and then hide it far from the Sniper's Nest. Then, I'll have to run down the stairs, the sound of which will probably alert people on the lower floors. But, maybe those floors will be empty too. Gotta think positive. Then I'll pop into the lunch room, and if anyone's there, I'm sure I won't look the least bit flustered, rattled, stressed out because this is no big deal for me. Look how many times I've done this kind of thing before. And I won't be winded either because I'm a Marine. 

10) I really like the way the odds are stacking on this. There's not a heck of a lot that can go wrong. True, they'll have ballistics experts who can trace the shooting back to the 6th floor. And true, they're going to ask everybody, and I won't have an alibi. And, the place is going to be swarming with cops afterwards, and they're bound to find my rifle no matter where I hide it. And, I certainly won't be able to sneak it out. But hey, I'm a smart guy, and I can outsmart all these people. And I'm a great liar too, and that's a big advantage. If I get caught, I'll just deny it. I'll deny it adamantly and repeatedly. Wait. Why am I killing Kennedy again? For fame. So, I'll be remembered. So, I'll forever be known as someone who changed the world. So, why would I deny it? Duh. The electric chair? Right. Of course. Well, that covers the gamut. I've thought of everything. Now I'm ready to do this. It's go-time.