You'd think so, right?   Would you say he saw anything significant based on this other than a description of Robert Webster?  The man they catch was 5'9" 135lbs....  Did this a number of years ago.... pretty sure a moment in time is NOT indicative of line of sight throughout... but I did find it interesting where everyone was facing and concentrating on... especially hard hat man by the lamp post who never seems to turn to his right to follow the motorcade... he only looks up Elm...