tampering

Apparently, there are some who say the Zapruder film was tampered. Did the home movie of kennedy's assassination show any signs of alteration?

an analysis of the doubletree video released. this analysis centers on the video which can also be downloaded from flight77.info/doubletree.mpg. this video has elements of an alteration. the time period just after the impact has ben tampered with in some way. i had to slow the video down to a...