On 4 April 1968, Robert F Kennedy (RFK) was informed that civil rights leader Martin Luther King had been shot. Despite advice from his aides and local police, he decided to go ahead with a largely African-American campaigning event in Indiana that very night. The audience had not yet been told that a white man had murdered their hero, and the police were unsure if they could keep an enraged mob that size at bay. RFK insisted on attending and quickly scribbled his speech on a piece of paper in the car to the meeting. Today, it is deemed his single greatest speech.