Since I don't have an account on X anymore, I can only see the image you linked to, and not the entire thread. It is a convincing piece of evidence that the shot was taken from <100 feet away, and not the >100 yards the FBI has claimed. It strongly suggests that Grandpa's .30-06 could not have been the murder weapon, and Tyler Robinson is not the murderer. Sound travels at specific speeds, and that acoustic analysis is probative the FBI is lying.