Who Killed Robert F. Kennedy?

Background

Robert F. Kennedy, US Senator for New York and brother of assassinated President John F. Kennedy, was shot shortly after midnight on 5 June 1968 while walking through a kitchen pantry corridor at the Ambassador Hotel in Los Angeles, having just addressed supporters after winning California's Democratic presidential primary. He died at Good Samaritan Hospital roughly 26 hours later, on 6 June. Sirhan Sirhan, a 24-year-old Palestinian Christian who had emigrated to the United States with his family in 1957, was seized by bystanders at the scene, still holding a .22-calibre revolver. He was tried, convicted of first-degree murder in April 1969, and initially sentenced to death; the sentence was commuted to life imprisonment in 1972 when the California Supreme Court invalidated the state's death penalty statute.

Sirhan testified that he acted alone, out of opposition to Kennedy's support for supplying fighter aircraft to Israel, and specifically timed the attack to the first anniversary of the June 1967 Six-Day War. He has since given inconsistent accounts of his memory of the shooting itself, at times claiming partial amnesia, a claim some later commentators have connected to unproven hypnosis-related speculation that has never been substantiated by any court or credentialed forensic investigation.

Main Theories

The lone-gunman conclusion

The official and judicial conclusion, reached at Sirhan's 1969 trial and upheld through decades of subsequent appeals and parole hearings, is that Sirhan Sirhan alone fired the shots that killed Robert Kennedy. This rests on his arrest at the scene holding the murder weapon, his own repeated trial testimony admitting premeditated responsibility, and a 1975 re-examination by a panel of seven independent forensic experts, convened by a Los Angeles judge, which found that all recovered bullets had been fired from a single gun, consistent with Sirhan's revolver, though the panel could not conclusively match the specific damaged bullets to that individual weapon due to their condition.

The second-gunman theory

A persistent minority position holds that the physical evidence indicates a second shooter fired the fatal shot. Los Angeles County's chief medical examiner-coroner, Thomas Noguchi, who performed Kennedy's autopsy, found the fatal wound entered from approximately one inch behind Kennedy's right ear, at near point-blank range and from behind, a position inconsistent with multiple eyewitness accounts placing Sirhan roughly a yard in front of Kennedy throughout the shooting. In 2004, a recording of the speech and shooting made by Polish journalist Stanisław Pruszyński was rediscovered and analysed by audio engineer Philip Van Praag, who counted as many as 13 distinct shots, exceeding the eight rounds Sirhan's revolver held with no time to reload; a subsequent review by forensic audio specialists at Audio Engineering Associates in Pasadena corroborated at least ten distinct shots, including at least one overlapping pair that would have been impossible from a single gun firing sequentially.

The theory has not persuaded courts or the state's official reviews. Other forensic audio analysts examining the same recording report finding no more than eight shots, and attribute additional sounds to celebratory balloons popping and microphones being jostled in the crowded, chaotic pantry. Sirhan's own legal team raised second-gunman claims in federal habeas corpus filings beginning in 2010, but a federal judge denied the petition in 2015, and no court has found the evidence sufficient to disturb his conviction.

Common Misconceptions

A common misconception treats the second-gunman theory as equivalent to a claim that Sirhan was innocent or uninvolved. It is not: every serious version of the theory accepts that Sirhan fired his revolver at Kennedy that night and was present, armed, and hostile; the claim is narrower, that the specific fatal shot's trajectory and the recording's shot count suggest an additional, never-identified shooter fired simultaneously in the crowded pantry, not that Sirhan was uninvolved in the attack.

A second misconception assumes Noguchi's autopsy findings were somehow suppressed or ignored. They were not: the point-blank, behind-the-ear entry wound has been part of the public trial record and forensic literature since 1969, and is the specific detail the 1975 seven-expert panel and later reviewers were convened to address, rather than a fact uncovered only by later conspiracy researchers.

Current Consensus

Courts, the 1975 forensic review panel, and California's parole authorities all continue to hold Sirhan Sirhan solely responsible for Robert Kennedy's death, a conclusion no subsequent legal review has overturned. The genuinely unresolved element, acknowledged even by many who accept Sirhan's guilt, is narrower: whether the pantry that night, packed with people, contained a second armed individual whose shots contributed to the fatal wound's specific trajectory, a possibility the available forensic and acoustic evidence has not conclusively proven or excluded to the satisfaction of independent reviewers on either side of the question.

Why This Mystery Endures

The RFK assassination sits in close conversation with who killed JFK: two Kennedy brothers killed within five years, both cases producing an official single-shooter conclusion that a body of physical evidence, ballistic in one case and acoustic and autopsy-based in the other, has never fully quieted for every independent reviewer. That pattern, a legally settled case whose specific physical details keep generating genuine, credentialed forensic dispute rather than fringe speculation alone, is what separates cases like these from claims built on witness testimony or coincidence alone, and is part of why conspiracy theories took hold so readily in a decade that had already seen one Kennedy assassination scrutinised for years.

The case also endures because of what it interrupted: Kennedy was shot at the height of a presidential campaign many supporters believed could reunite a country fractured by 1968's other convulsions, and a killing that ends a political trajectory mid-stride tends to generate more enduring "what if" speculation, and closer scrutiny of exactly how it happened, than one that concludes a settled career. Olof Palme's 1986 assassination offers an instructive contrast rather than a parallel: where Sirhan's conviction has stood for over five decades against persistent forensic doubt, Sweden never reached even that much certainty, and its most recent official theory was itself withdrawn in 2025. Robert F. Kennedy's assassination is part of this site's broader conspiracy theories coverage.