Four assassins, of whom only one was competent; but you only need one, don't you? One Archduke, one Archduchess. A wrong turn taken by their driver in Sarajevo on June 28, 1914, placed them directly in the path of Gavrilo Princip, a Serbian nationalist and conspirator who, having heard of the failure of his three comrades to inflict so much as a scratch on the visiting Austrian Imperial couple, was coming out of a delicatessen unwrapping a ham sandwich and heading, as were the Imperials, for home. None of them made it. Princip, whose sole virtue may have been decisiveness, saw his chance–the massive touring car about three feet away–and took it, dropping his sandwich and whipping out his pistol. You hardly needed to be a marksman to hit those targets, but Princip was a genuine marksman and managed to get off several shots. Upshot: Three orphaned children and World War I–and, by logical extension, World War II, too. (Princip died in prison in 1918, aged 23, of TB.)