Forensic evidence is science based evidence that requires evidence from an expert provided to a court in which the expert opines on something on which they have particular knowledge.
Nonsense. Forensic evidence doesn't always require expert testimony to interpret. In some cases, expert witnesses are called to interpret what the forensic evidence for the jury. In other instances, the jury can be presented the evidence and allowed to use their own judgement as to what it represents. That was the case in the murder trial in which I was a juror. We had the medical examiner testify regarding the autopsy evidence and what it established regarding cause of death. We were also presented with the murder weapon and two recovered bullets. The only testimony was by the crime scene investigators who told us where the bullets were recovered from. He didn't attempt to tell us what those bullets indicated. We were able to determine that for ourselves. One bullet hadb bullet had been recovered from the wall and combined with the medical examiners testimony, we were able to determine that was the bullet that had passed through the midsection of the victim. The other bullet had been recovered from underneath the victim's head. It had gone through the victim's head, into the carpet and been stopped by the concrete floor underneath it. That was a lead bullet that had flattened out when it hit the concrete floor. We determined that was the fatal head shot which was fired as the victim was laying on the floor following the first shot.
In another case I sat on, we convicted a forger. While we heard testimony from a handwriting expert, we convicted the forger almost entirely on the handwriting sample which we compared tot he forged check. Even we as laymen could tell both signatures had been written by the same hand. The two were identical in every way. We didn't need the experts testimony to tell us that. I don't recall that we even deliberated about the expert testimony. We passed the checks and the handwriting sample and quickly agreed the guy was guilty.
Often the opinions are with respect to something physical but not necessarily physical. Experts, for example could be used to establish that certain behaviours indicate that the accused was engaged in trafficking drugs, or smuggling people, or committing fraud.
In this case, a mathematician could provide an opinion on the probability of this kind of distribution of independent witness observations where the vast majority were completely wrong. That would be forensic evidence.
BS. Mathematicians can't prove whether witnesses have accurately remembered an event.
But I also point to forensic evidence in the form of medical opinions of JBC’s doctors that his torso was turned far to the right when hit so that it was almost parallel to the flight path of the bullet.
Since you don't quote those doctors, we are left with your interpretation of what they said on that point.
I could also point to expert lip readers who say that JBC is saying “oh, no, no” around z245-250.
What the hell is that supposed to prove?
So where is your forensic evidence? You are not an expert on interpreting human responses to gunshot sounds so your opinion on what you think is happening in the zfilm is not forensic evidence. The zfilm itself is not forensic evidence. It is simply evidence.
We have the forensic evidence of the Z-film corroborating JBC's account that he turned in reaction to hearing the first shot which hit neither him nor JFK. He then tells us after turning and seeing nothing, he was just starting to turn to face the front when he felt the second shot hit him in the back. The Z-film shows us that both he and JFK reacted to being shot at the same instant when both of them suddenly flipped their arms upward at Z226 which was immediately followed by JBC twisting and dipping to his right. That footage also corroborates Glenn Bennett's report that he heard a shot before turning to see JFK hit by the second shot. This is a case where the witnesses are supported by the visual evidence of the Z-film. Nothing you imagine is supported by the Z-film or any other forensic evidence. On the contrary, the Z-film refutes your crazy beliefs.