Assassination Lincoln, James A. Garfield, William McKinley and John F. Kennedy—died at the hands of assassins. There have been at least 20 known attempts on U.S. presidents' lives. Huey Long, a Senator, was assassinated on September 10, 1935. Robert F. Kennedy, a Senator and a presidential candidate, was also assassinated on June 6, 1968 in the United States. In Austria, the assassination of Archduke Franz Ferdinand and his wife Sophie, Duchess of Hohenberg in Sarajevo on June 28, 1914, carried out by Gavrilo Princip, a Serbian national and a member of the Serbian nationalist insurgents (The Black Hand), is blamed for
Muhamed Mehmedbašić the way to Sarajevo, gendarmes searched the train; fearing they were on to him, he threw the knife out the window. Potiorek was planned to be assassinated at the end of March 1914, when the new mufti Čaušević was to be enthroned in Sarajevo. However, upon hearing that Archduke Franz Ferdinand of Austria would come to Sarajevo on Vidovdan, the Black Hand changed their minds. The Archduke's scheduled visit on Vidovdan (28 June), a Serbian national holiday, was perceived as an insult. Ilić summoned Mehmedbašić and informed him on 26 March that the plan now was to murder Archduke Franz