Nah, I have a pretty good idea. Time trials support a proof-of-concept (feasible) later confrontation
Except there were no time trials in the Tippit shooting..... Just a contrived narrative based on unreliable times given by DPD dispatchers.
Since we know Oswald was at his roominghouse just after 1 pm, there is no physical way for him to have been at 10th/Patton between 1.06 and 1.10 when - as I believe and a preponderance of evidence shows - Tippit was killed, which makes any witness "identification" questionable at best.