The secret history, some questions.

I just finished reading The secret history by Dona Tartt. And i have a lot of thoughts and questions so i thought posting here is a good idea, also i read few reviews and a bit of theories so i am really interested in TSH lore.

1. Did they actually kill the farmer? I feel like they might have not killed him and were wrong about it. Making it more tragic.

2. Also about the ritual and stuff so there is a lot of supernatural things happening, did they actually experience all that stuff during bacchanal? Or they just lied?

3. Was Henry trying to frame Richard and kill Charles? And were his feelings towards camilla genuine or was he just manipulating her?

4. Is Henry a psychopath or just a victim of events? I feel like was definitely manipulative but he didn't want to kill Bunny but there was no choice and farmer's death was an accident.

5. The incest ?? Also i feel like in the end charles might have tried to force himself on Camilla. Idk

6.Is Richard genuine or just an unreliable narrator twisting the story? Also what exactly makes Henry to confide in Richard?

1. Henry killing himself and making the ultimate sacrifice, do you think he redeems himself in that way?

2. Is Julian actually the master manipulator, orchestrating everything? Maybe a part of some ritual. His behaviour was weird and by the end Richard points out some stuff regarding it.