Okay the scientist dude is actually against the facility and is trying to find a cure. I guess his coworker/supervisor is the pig guy. So scientist man is pissed that little A is making everyone feel comfortable in their hybridness coz he wont have test subjects anymore. Tries to kill little A too. And we find out that now pig man supervisor was in the same therapy program as little A. In the previous chaps, we know that little A was taken to see psychiatrists throughout his childhood. Little A doesnt remember why but the sessions were triggered after something that happened at mr A's farm.
I had a few theories what had happened and this chap def helped narrowed it down (smth to do with ASPD)

can someone explain chapter 24 like im 5 i feel so stupid