Sounds like this was more recent diaries than the diaries mentioned by Cindy Adams in her article. Those diaries were in an old storage facility without paid rent and sold at an auction.. happens often in SOCal, Paris Hilton's things became public for the same reason.... this sounds like more recent diaries she was keeping in the Bahamas...
She probably stored a lot of her stuff in California when she moved and forgot to pay rent and is how those men came into the possession of the old diaries.