They've been vaulted since their recording a few months after her husband's death, but now the secret confessions of Jackie Kennedy Onassis will be released. The shocking tapes reveal that the former first lady believed that Lyndon Johnson and Texas businessmen were behind the assassination of her husband on Nov. 22, 1963. She also confesses to an affair with actor William Holden, an act of retaliation for her husband's own romps with a 19-year-old White House intern and other women. Jackie recorded the tapes with the historian Arthur Schlesinger Jr., but asked that they not be released until 50 years after her death, fearing the confessions would have made her family targets for revenge. Although she died only 17 years ago, her daughter, Caroline Kennedy, has agreed to release them early and have them aired on a special program on ABC. It is believed she agreed to the release in exchange for the network dropping its $10 million series about the family.