Daniel James White was an American politician who assassinated George Moscone, the mayor of San Francisco, and Harvey Milk, a member of the San Francisco Board of Supervisors, inside City Hall on November 27, 1978. White was convicted of manslaughter for the deaths of Milk and Moscone and served five years of a seven-year prison sentence. Less than two years after his release, he returned to San Francisco and later committed suicide.

On November 27, 1978, George Moscone, the mayor of San Francisco, and Harvey Milk, a member of the San Francisco Board of Supervisors, were shot and killed inside City Hall by former Supervisor Dan White. On the morning of that day, Moscone intended to announce that the Supervisor position from which White had previously resigned would be given to someone else. White, angered, entered City Hall before the scheduled announcement and first shot Moscone in the Mayor's office, then Milk in White's former office space, before escaping the building. Board of Supervisors President Dianne Feinstein first announced Moscone and Milk's deaths to the media, and because of Moscone's death, succeeded him as acting mayor.