Unlike you I want to get to the bottom of things.
You sure coulda fooled me. I think that Brewer is still around, so I guess you could ask him.
Primary reason: his account (movements) involving the IBM boys does not match his WC testimony.
Secondly, locking themselves up inside the shop, behind his back, makes no sense unless he intended to continue towards TT. [...] Since they stayed behind anyway the act of closing up the shop also made no sense.
Chapman obviously didn't understand it, so where did you get the 5-10 seconds from?
By timing myself walking 15 feet to a locked door, pulling on the door twice to make sure it was locked, then walking 15 back to where I started from. Took a bit under seven seconds.