after her death. On the tapes, Monroe spoke of her plans for the future, which Miner argues is proof that she could not have killed herself. She also discussed her sex life and use of enemas; Miner alleged that Monroe was killed by an enema that was administered by Murray. Miner's allegations have received criticism. During the official review of the case by the district attorney in 1982, he told the investigators about the tapes, but did not mention that he had transcripts of them. Miner claimed that this was because Greenson had sworn him to silence. The tapes themselves have never been found, and Miner remains the only person to claim they existed. Greenson was already dead before Miner went public with them. Biographer Lois Banner knew Miner personally because they both worked at the University of Southern California; she further challenged the authenticity of the transcripts. Miner had once lost his license to practice law for several years, lied to Banner about having worked for the Kinsey Institute, and had gone bankrupt shortly before selling the alleged transcripts. He had first attempted to sell the transcripts to Vanity Fair, but when the magazine had asked him to show them to Summers in order to validate them, it had become apparent that he did not have them. The transcripts, which Miner sold to British author Matthew Smith, were therefore written several decades after he alleged to have listened to the tapes. Miner's claim that Monroe's housekeeper was in fact her nurse and administered her enemas on a regular basis is also not supported by evidence. Furthermore, Banner wrote that Miner had a personal obsession about enemas and practiced sadomasochism; she concluded that his theory about Monroe's death "represented his sexual interests" and was not based on evidence. Smith published the transcripts as part of his book Victim: The Secret Tapes of Marilyn Monroe (2003). He asserted that Monroe was murdered by the CIA due to her association with Robert F. Kennedy, as the agency wanted revenge for the Kennedys' handling of the Bay of Pigs Invasion. Smith had already written about the topic in his previous book, The Men Who Murdered Marilyn (1996). Noting that Smith included no footnotes in his 1996 book and only eight in Victim, Churchwell has called his account "a tissue of conjecture, speculation and pure fiction as documentary fact" and "arguably the least factual