IMO
The CTer alternative to Oswald taking the shots always seems to involve professional hitman/snipers or even teams of them at various points in and around Dealey Plaza. Apparently the plan being to have people firing from all different angles while trying to make it look like there is only one guy firing three shots from a specific location.
Imagine the planning meeting for that!
Surely someone would've pointed out the impossibility of this plan or the stupidity of it.
These guys are professionals after all, highly trained and organised...
Q: ...and how many people should we expect in Dealey Plaza?
A: I'm not sure, it could be hundreds, it could even be thousands. People could be swarming all over the Grassy Knoll and behind the picket fence. We have no way of knowing but we're going to assume the crowds have disappeared by this point.
Q: What's a grassy Noel?
The target is JFK's head.
A professional hit would involve a single shot to the head.
Of the three clearly audible shots reported by over 160 witnesses, only one hits the target. If there are more shots than three, these also miss the target making the whole escapade even more sloppy.
I've never been, but anyone I've ever heard talk about Dealey Plaza are amazed at how small it is, how small the distances are.
For a professional, a head shot in these circumstances is easy.
For an amateur it involves missing the limo and all it's occupants completely, hitting JFK but not in the right place and, eventually a head shot (but not necessarily in that order).
The speed of the three shots implies panic, not a cool head.
And the most important fact is this - JFK is shot through the throat and there is, at the very least, a 5 second gap between this non-fatal shot happening and the fatal head shot. In this 5 second gap anything could happen: the limo speeds off or starts evasive swerving manoeuvres, one of the Secret Service agents actually does his job and makes it to JFK and covers him or JFK slumps all the way over to his left, puts his head in Jackie's lap and is impossible to hit, or any other number of scenarios where the head shot cannot be made.
The point is this - there is a truly massive slice of luck involved in the assassination of JFK.
Professionals would not find themselves in a situation that involved this amount of luck.
The assassination is perpetrated by a non-professional.
IMO