 At 11 a.m. this morning, San Francisco Mayor George Moscone and City Supervisor Harvey Milk were shot and killed in their City Hall offices. Board of Supervisors Diane Feinstein, who now becomes Acting Mayor of San Francisco, made the announcement to a stunned group in City Hall. As President of the Board of Supervisors, it's my duty to make this announcement. Both Mayor Moscone and Supervisor Harvey Milk have been shot.