Virtually every critic of the Warren Commission and writer of conspiracy books ignores the requirement for an alternative 6th floor shooter. If not Oswald, someone who used Oswald's rifle to assassinate President Kennedy.
There was a 6th floor TSBD shooter -- Oswald or a hit-man. He would have had the same difficulties that Oswald did in escaping the crime scene.
For all claims of "impossibility" for Oswald being the assassin, the real 6th floor shooter is equally affected.
Officer Marion Baker (accompanied by Mr. Truly) went up the back stairs of the TSBD a little more than a minute after the shots were fired. Baker found Oswald in the 2nd floor lunch room. Reconstructions have demonstrated that its possible to get from the 6th floor sniper's nest to the 2nd floor lunch room in less than 90 seconds. Even if this is disputed by conspiracy theorists, a similar time frame exists for the real 6th floor shooter. How did he get past Baker and Truly on the stairwell and escape the TSBD? If there truly was a conspiracy: The plotters would require a foolproof plan in which their shooter could escape from the crime scene without being captured or even seen by a witness.
There would need to be accomplices who would prevent employees being inside the TSBD before, during and after the time of the assassination. Every floor up to the 6th (and even the 7th) would be off limits to everyone except the shooter and his helpers plus Oswald. This did not happen.
An innocent Oswald would need to be restrained prior to and during the assassination. It did not happen because Oswald never explained this to his interrogators and never "blabbed" this scenario to the press (in front of cameras and microphones) at City Hall.
No professional hit-man would accept a contract to assassinate President Kennedy. The chance of committing the crime and avoiding capture is so slight that no amount of money would be worth the risk.
An inside job is far more plausible. Oswald had the advantage of legitimately being anywhere in the TSBD after the assassination. That's why Officer Baker let Oswald go due to Truly vouching for his employee. Officer Baker would have arrested the real 6th floor shooter.
Your premise is flawed. There isn't a trajectory from the 6th floor that enters JFK at the T1 vertebrae and exits at the C7 vertebrae in his throat then enters Connally at the 5th rib. That's what makes the bullet magical. All your wishful thinking not withstanding. Otherwise, demonstrate it and prove me wrong. Maybe you will be the 1st to win the 2 laser challenge. The LNers that have tried it, no longer post here.
Get in between 2 lasers aimed at each other at a 17 deg angle and note where each laser strikes your body. Can you make them match the autopsy photos?
Good luck!