I think he will be more like the catalyst. He probably was someone who took care of him and when they killed him in front of him, the mugo curse occurred due to his soul been broken
I had this exact same thought
Mind break material for real.
Wow, that actually might be worse, bravo on the level of angst and heartbreak youve introduced to my mind. Let me go cry in coner for a week and get back to you
If JH turns out to be his main torturer I will kms bc thats it JH will runaway or even end himself through guilt. Dear god lets this go another way