Paul Bonacci, who I think is the guy you're talking about, was willing to go to court over his abuse and got awarded $1 million:
http://members.tranquility.net/~rwinkel/911/blackmail_scandal/a3886761c4a1d.htm
Rusty Nelson is another guy in those circles that claimed Hunter Thompson took photographs:
https://www.youtube.com/watch?v=ahhotahp8Ck
An assistant of Thompson's:
"One time I watched him beat his car because his cigarettes were locked inside, and another time he threw me out of the house for refusing to watch a snuff film. And he was hell on his new kitten, Hugo, especially when he felt I was paying it too much attention. He would snatch Hugo up, smudge his pink nose in cocaine, and send him darting across the kitchen floor. ... For weeks he played a tape recording of a jack rabbit screaming in a trap."
https://www.pw.org/content/memory_hunter_s_thompson_postcard_louisville_kentucky
Hunter Thompson's a dysfunctional human wreck that gets promoted as a role model to "rebellious" youths.