Not so believable.

I think Jesse Ventura prostitutes himself for money; not a huge surprise as many people do it. Here is an example. https://www.youtube.com/watch?v=qSWSgcuYqDo

1. Magic bullet nonsense. There is nothing magic about a long, slim, high velocity bullet penetrating two bodies at short range.
2. He has a hard time believing that a Marine who managed to qualify as marksman would have a hard time hitting a slowly moving large target at close range.
3. Jim Fetzer is only an assassination expert in his own mind. I have exchanged e-mail with him, he is nuts.
4. Fetzer describes the Carcano as difficult because your have to pull your head away from the scope to cycle the bolt and re-acquire the target; just like almost every other bolt action rifle.
5. Oswald did not have to shoot through trees; the trees shown were smaller in 1963.
6. Ventura says it was amazing that he still qualified as an expert at 50 years old. This is not actually amazing at all.
7. Ventura operates the Carcano like a newbie who has never operated a bolt action rifle before. Maybe the bolt was dry, but all experts know a single drop of oil on the bolt will make the Carcano very slick to operate. My 6.5mm Carcano is junk, but it operates very slick.
8. Just because Ventura operates the rifle like a complete boob, does not mean any competent shooter can't do well with it
9. He talks about re-enactments that failed, but not about those that worked.