[Hot Tabasco]

Oswald killed JFK.

Oswald's first shot missed, his second shot hit Kennedy in the back and the shot that took the right side of his head off may have come from an accidental discharge of the rifle held by a secret service stationed in the trailing limousine.......

[9422WMR]

Oh BS!
JFK’s brain was blown all over the trunk of the limo. Jackie crawled back to grab a big hunk of his head/brain.
Anyone who has ever hunted with a high power rifle knows the round creates a small entry wound and a large exit wound. High velocity round would also knock the target back from direction of the gunshot.
If he had been shot from behind, his brain and part of his face would have been sprayed all over the dash and he would have fallen into the floorboard area in front of his seat.
Plus the round through his through was front to back.
Here’s an interesting website: http://www.jfksouthknollgunman.com/index.php/04-2-bullet-hole/

[jmacusa]

Nope, Oswald. If Oswald, who failed at everything life did one thing right he became a United States Marine. You don't earn The Globe and Anchor unless you qualify as a marksman. Oswald did that much. He knew how to shoot.

[nonsporting]

Oswald's first shot missed, his second shot hit Kennedy in the back and the shot that took the right side of his head off may have come from an accidental discharge of the rifle held by a secret service stationed in the trailing limousine.......

This is the premise of Donahue's theory. It makes sense based on the evidence: (1) 3 spent 6.5mm Mann Carcano cases, with one primer exhibiting multiple strikes (a dry-fire case perhaps). (2) the diameter of the skull entry is too small for 6.5mm, but matches that of a 5.56mm projectile. (Skull tissue doesn't "snap back" -- it's bone).

The grassy knoll theory's major weakness is that this not a shooting position a marksman would choose. The target is would be moving laterally left->right which is hard track. Before or behind present a relatively stationary target to the shooter. A shooter positioned in front would have to deal with the windshield. It was intact, so that position is ruled out. That leaves the rear -- the book repository.

I was convinced when I first read this theory 28 years ago. Oswald fired two shots: the first missed, but the second struck Kennedy in the back and the 160gr FMJ bullet easily passed through him into Connelly. The leaves the dramatic third shot which struck Kennedy in the head to explain. A 5.56 NATO round fills the bill. Who has them? The secret service agent standing in the rear seat of the follow-on limo was sporting one. Donahue's experience investigating shootings positioned him perfectly to address what is or is not possible.

Oh, Donahue beat Oswald's supposed feat demonstrating that it was not beyond the skills of most marksmen. If we assume that Oswald fired three shots, then Donahue and another shooter in that CBS reenactment bettered Oswalds time. (But then Oswald only fired twice according to Donahue.)