Again, there was no mention of the camera above and behind Charlie as a device that fired a .22 long rifle bullet.
I fail to see why there would be such a discussion. If the security chief saw the autopsy and the internal destruction as described, such a device would not be needed to explain anything. Synchronizing a high powered rifle shot with such a devise would be rather difficult, (not impossible) and to what purpose? The damage from a .22 LR is enormously different than from a .30-06.