Seems to me the Kennedys with their heads on straight are the ones who in some way distanced themselves from the rest of the jackals.
I was wondering whether Miss Hill ever received any help for her depression. Her writings make it sound like she was aware she had a problem, but it also seems she may not have had proper treatment. Years ago, I read something about Joan Kennedy, Ted's first wife. It was alleged in that story that the family knew she had a problem with alcohol, but didn't want her to get help. Why, I don't know. Were they afraid that in therapy or AA, she might spill the beans on some dirty dealings in that family? Anyway, according to this story, Joan didn't really get better till after she got away from Ted and the rest of the clan.
Don't know if that story is true, but it does sound plausible.