The question is how does Iacoletti or yourself determined that the stretcher was unrelated?
How do you determine that CE 399 had anything to do with the assassination?
Btw there is no doubt that the bullet found was a complete bullet but how did anybody know at that point in time the conditions of the bodies and if the bodies contained bullets or parts of bullets?
Who says anybody did?
So what you apparently believe is that your conspirators just decided to plant a bullet that precisely fits the wounds and wasn't one too many, did they have the Lotto results too?
What makes you think that the pointed bullet that Tomlinson gave O.P. Wright precisely fit anything? Or CE 399 for that matter?
CE399 was flattened on one side indicating that it had to have struck a solid object at an angle
Well if that ain't proof that it hit Connally then I don't know what is.

and we know by Connally's linear type back wound that it must have been caused by a tumbling bullet.
Or a bullet entering at an angle.