Theory to discuss: Forces in the CIA opposed to Robert Kennedy's presidency - we can speculate as to why such as his opposition to the Vietnam War - assassinated him, with Sirhan Sirhan a 'patsy' conditioned in the MKULTRA program, who simply fired shots fast upon a trigger (possibly blanks) while one or more other gunmen shot Kennedy and others and quickly withdrew. For a start, there is significant evidence of Sirhan's conditioning.