Martin Luther King Jr. was shot and killed by James Earl Ray outside his room at the Lorraine Motel in Memphis, Tennessee. The assassination sparked riots across the country.
Just a few hours after the close of the California Democratic primary, presidential hopeful Senator Robert F. Kennedy was shot by Sirhan Sirhan. Kennedy died a day later of his wounds.
Radical black leader and former Nation of Islam minister Malcolm X was assassinated during a lecture in Harlem. Three Nation of Islam members were later convicted of the murder.