PM Spencer Perceval shot in the Commons Lobby, 11th May, 1812

British Prime Minister Spencer Perceval is shot by a bankrupt banker John Bellingham in the lobby of the House of Commons .
After the excitement caused by the shooting had quietened down, someone called out "Who was the rascal who did it?". At this moment a stranger to the House (a person who is not a Member of Parliament) walked up and calmly said "I am the unfortunate man". Bellingham made no attempt to escape, although he had by this time discarded his pistol.

Perceval is the only British PM to date to have been assassinated. For 10 points, can you name the four US Presidents who have suffered this fate? (answers tomorrow).