The commission finished its report by recommending reform in presidential security measures, and it offered specific proposals to improve the Secret Service. .
The First theory is called the Grand Conspiracy Theory. This theory says that many groups were involved in the assassination of President Kennedy. The groups were organized crime, the anti-Castro Cubans, the CIA, business and Banking, the oil industry and even the U.S. military.
Because of his family's great wealth, John F. Kennedy was incorruptible by bribes. He was also the only president since Franklin Roosevelt who was an intellectual. Kennedy had a good sense of history and a global outlook. He apparently had a vision of making the world more peaceful and a less corrupt place. In other words, he really believed what he was doing as President and he set out to shake up the status quo of Big Banking, Big Oil, Big Military-Industrial Complex with its powerful Intelligence Community, and Big Organized Crime, which had became more involved in everday American life since Prohibition.
There are well documented ties between the mob and the CIA and had worked together in similar types of operations. The mob was on the run as the Kennedy administration had began to wage war on organized crime, they were in a self-defense mode along with the banks and industries they controlled. The anti-Castor Cubans felt betrayed by Kennedy because of his last -minute orders stopping U.S. Military assistance to the Bay of Pigs invaders. And no matter how violent and well organized the crime-intelligence-industrial cliques were, they never would have assassinated President Kennedy without the approval of, or at the very least the neutralization of the U.S. military. The military was incensed in the late 1963 when Kennedy let it be known that he planned to withdraw all U.S. military personnel from Vietnam.
Oil men were angry over the oil-depletion allowance that was being done away with by Kennedy.