His only sources were Slatzer and his private investigator, Milo Speriglio.[64] In addition to repeating Slatzer's claims, Scaduto alleged that Monroe had kept a red diary in which she had written confidential political information she had heard from the Kennedys, and that her house had been wiretapped by surveillance expert Bernard Spindel on the orders of union leader Jimmy Hoffa, who was hoping to obtain incriminating evidence he could use against the Kennedys.[64]