Bet he had a domineering mother/mother figure in his life.
I know that’s the stereotype, but I think the truth is more about a screwed up relationship with the dad. We lived in California and they lived in Washington and weren’t very close but I was told there was a demand for perfection in their house. He and his sister went through school with almost perfect 4.0 GPA’s. The family seemed nice enough. Something went haywire.