The US government murdered JFK. The Casket was closed because JFK's brain was missing. PLUS in my opinion no casket should be open, it is sick to look at a dead body.
The shots that killed JFK came from the Grassy Knoll. The shooter put the first round right behind the temple on the right side of his head. His brains splattered all over Jackie.
Supposedly, LBJ told his mistress the night before the assassination, "After tomorrow I'll not be disrespected again."
After Jack Ruby killed Lee Harvey Oswald, a reporter asked Ruby, "Jack, how could this have happened?" Ruby replied, "If Adlai Stephenson were Vice President this never would have happened." :-/