Just to be accurate, Posner's theory is that the alleged lone gunman's first bullet hit a limb of the intervening oak tree -- not a leaf, but a limb. Then, so the theory goes, the bullet's jacket separated from the lead core, and the bullet then sent two large fragments streaking in different directions, one striking the pavement behind the limo and the other magically weaving through the other tree limbs and jetting straight to the Tague curb site over 400 feet away.
Yes, it is fairy-tale material to assume that a supposed "sharpshooter" aimed at JFK's head or upper back but was so wildly off the mark that the bullet hit one of the tree limbs, and even hit far enough up the limb so the limb didn't snap or bend. No sensible, rational, objective person is going to buy such an utterly absurd scenario.
Specter and the FBI recognized immediately that the Tague wounding wreaked havoc on their single-assassin theory, which is why they ignored it for as long as they dared. Indeed, as mentioned, when the WC finally asked the FBI to investigate the Tague incident, the Dallas FBI claimed they could not find the Tague curb scar and theorized that street cleaners had wiped it away!
Like most CTs, MTG ignores the obvious difficulties with the first shot that were not present for the subsequent shots. The first shot was by far the most difficult one and not at all surprising that Oswald would completely miss with it. He also pretends Posner's theory is the only viable one available to those who believe Oswald acted alone.
Nothing about the Tague injury calls into question the lone assassin scenario. There are plausible explanations for Tague's injury that are perfectly consistent with Oswald as the lone gunman.
