Williams also changed his version of events on multiple occasions. When did these three conspire to deceive the authorities regarding Williams' true movements prior to the shooting?
I'm not sure that any of the three stooges changed their version of the events.... I believe the FBI twisted the various versions and that made it appear that those young guys were changing their stories....
The authorities were bent on discrediting anybody who had useful information to relate.
As I wrote, if you go back and look at the evidence you will see a signed statement by Norman and the summary that was prepared from it. There is no distorting of his signed document. The assembled evidence collected before Belin and Ball visited Dallas clearly showed that all three has falselyclaimed Williams came with the others when the official story after their WC appearance develops otherwise. This is not a question of whether but when it was decided. My conclusion is that the other two wanted to stick with the original story as they originally agreed. They felt guilt by association with Williams who they had only known a few weeks.
This is why I provided all the evidence I could find and posted it here in chronological order. For those interested in meaningful debate of the facts as proven. Many started to offer an opinion but now seem reluctant to proceed.