The CIA released 1,450 additional pages of documents related to the assassination of Robert F. Kennedy on Thursday, including 54 previously classified documents. The files could shed new light on the motivations of Sirhan Sirhan, the Palestinian-born Jordanian citizen convicted of Kennedy’s murder after the 1968 shooting. One of the handwritten notes includes the lines “Kennedy must fall” and “tonight, tonight.” Other records will disclose details about a trip that RFK took with former Supreme Court Justice William O. Douglas to the Soviet Union in 1955, during which the future US attorney general and senator “served the Agency as a...