From the Wizard...
Ralph I have said this before, but I think it's important enough to repeat. Bookhout's 'calmness', as reported by his wife, is what put him center stage in the basement. The Garage Shooter stepped out of the line of reporters with an almost Zen-like calm - no hesitation, no clumsiness, no nervousness - just determination. He was almost dynamic, like Jack Bauer, the absurd hero of '24'. Get in, get out of there, get the job done: on the 'Who Dares Wins' principle.
Bookhout must have developed a real rapport with Oswald. That Oswald went up to talk to him in the hall speaks volumes. Notice above how short the shooter looks. He looms large in the picture because he is close to the camera, but you can still tell that he is short. Jack Ruby was 5' 8 1/2" so just a half inch shorter than Oswald. This man is obviously shorter than that. And here he is again here.
I wish I could find the guy who pointed me to this so that I could thank him. He did good.