Original sentence: After he died, Hoover's files were shredded by his secretary.Edgar Hoover was the long-time director of the Federal Bureau of Investigation.Frequently mentioned in theories is the Central Intelligence Agency (CIA).He did not want to retire even though he was approaching in January 1965 the then-mandatory government retirement age of 70 and would be retired by President Kennedy had Kennedy lived to be reelected.Oil businessmen and their supporting bankers, many from Texas, who stood to lose billions of dollars of profits because President Kennedy wanted Congress to discontinue the hefty 27.5 percent oil depletion tax credit allowance.They vary as to what extent, if any, Oswald was involved in the conspiracy.Vice President Lyndon Johnson gained from Kennedy's death, in that it promoted him to the presidency
Edited sentence: Edgar Hoover did not want to retire even though he was approaching in January 1965 the then-mandatory government retirement age of 70 and would be retired by President Kennedy had Kennedy lived to be reelected.High on the list of organizations that had the means and possible motive to assassinate President Kennedy was the Central Intelligence Agency (CIA).Johnson had the most to gain from Kennedy's death, as it promoted him to the presidency.Persons who were politically to the far right, specifically oil businessmen and their supporting bankers, many from Texas, who stood to lose billions of dollars of profits because President Kennedy wanted Congress to discontinue the hefty 27.5 percent oil depletion tax credit allowance.Vice President Lyndon Johnson