Diab was arrested by the Royal Canadian Mounted Police (RCMP) on November 13, 2008, at the request of French authorities who want him extradited to stand trial for his alleged role in a 1980 bombing outside a synagogue on Rue Copernic in Paris. He faced charges of murder and attempted murder in connection with the bombing, in which four people were killed and dozens injured by the detonation of about 10 kilograms (22 lb) of explosives hidden in the saddlebags of a parked motorcycle.[6][2][3]