This investigation into the RFK assassination explores numerous loopholes in the official explanation and points to possible culprits. Destruction of key evidence by the Los Angeles police, intimidation of witnesses by CIA operatives, and the escape of the "woman in the polka dot dress", are all crucial elements in the author's argument that Sirhan Sirhan could not have been the only shooter.

In this investigation into a murder that changed history, Melanson draws on intelligence community sources and interviews with key witnesses (including James Earl Ray) to point out glaring oversights and illogical conclusions in the official explanation of King's assassination.