Robert Kennedy is shot in the kitchen pantry of the Ambassador Hotel in Los Angeles on June 5, 1968, and this 1973 film goes back to the scene to ask whether Sirhan Sirhan fired the only gun that night. It gathers eyewitnesses who were in the pantry, photographs the bullet holes and door frames investigators later argued did not match the official trajectory, and lays out testimony about shots fired from behind Kennedy, a position Sirhan never occupied. Acoustic evidence, the number of bullets recovered versus the number Sirhan's revolver could hold, and the LAPD's fast destruction of physical evidence all get examined in turn. The film keeps its focus narrow, sticking to the mechanics of the shooting rather than speculating about who else might have been involved, and lets the discrepancies between witness accounts and the police version of events make its case. It is one of the earliest theatrical films to challenge the official account of the assassination.