MJ12 Secret Control Group.
Milton William Cooper was a member of the Intelligence Briefing Team of the Commander in Chief of the Pacific Fleet or in other words he worked for the Navy.
On July 2, 1989, in Las Vegas, Nevada, he unveiled TOP Secret information regarding the Government secret agency MJ-12 or MAJIC 12.
MJ-12 assassinated President Kennedy when he informed them that he was going to tell the public all the facts regarding the alien presence. He was killed by the Secret Service agent driving his car and it is clearly visible in the film withheld from the public view.