I read it as an indictment of so-called psychiatric “treatment” and the breakdown in his family life at a young age.
This boy’s family failed him at an early age, the school system failed him, and so did every institution with which he had contact.
The combination of this kid’s issues and the lack of an effective adult in his life were the catalysts to this shooting.
No psychiatric treatment can offset the multiple failings that left this kid a bomb. They try but it is like trying to hold back the ocean. ANd no pill can make this kid, or could have made him, whole.