Its amazing no one saw a gunman, apart from Hoffman.
We have a couple of hundred people looking at one spot from all directions, in broad daylight.
How many gunmen were seen? Zero.
Zapruder, Sitzman and Hudson and others. Feet away, really close. Heard nothing, saw nothing. High powered rifle firing feet away from their heads. Didn't react. Amazing.
First, you can throw out anything from the WCR, so we have no idea how many people might have seen or heard anything. The reason Zapruder and others didn't hear anything is because that's how a turkey shoot works. They obviously heard the kill shot at frame 313, which they assumed came from the direction of the TSBD, but they didn't hear any other shots. That's because a triangulated turkey shoot, fires simultaneous shots that are intended to sound like 1.
JFK was shot at from behind until he got to the Stemmons sign with his hands to his throat. If he wasn't dead by this point, umbrella man was to signal to the snipers to take their shots at the turkey shoot point where simultaneous shots sound like 1 shot coming from a single indeterminate source. This is why Greer slowed down the limo and almost stopped it at the turkey shoot point, which was actually marked off with white paint on the curb. Then everyone heard a single shot and what they thought was an echo.
The 2 shots that struck JFK were from the knoll and the overpass, back and to the left. The knoll shot was a frangible bullet that entered JFK's right temple and nearly blew his head off. The overpass shot entered at the right side of his hairline and blew out a fist-sized hole at the back of his head. The overpass shot struck JFK ~.1 secs sooner than the knoll shot.
Overpass shot.
Right temple blow out.