I knew a guy in the early 2000s, a retired dentist, who had killed his wife and mother-in-law in their shared home with a knife in the early ‘70s. Chased them around the house and stabbed them to death. I guess he’d had enough.
He pled insanity and got off scott free after some short time (months) in a nuthouse. He had money and a good lawyer.
I knew him through a church org. He was rail thin and a little uptight but otherwise he was perfectly rational. He did have a temper underneath but didn’t show it much.
I always got the impression that he was like a boiler that had blown its top at one point but was still in use. Wound a little tight.
I’m betting the women hen pecked him one to many times.
The same with Austin Harrouff. He murdered two people in Florida and tried to murder a third. He was eating the face off the man. When the Police pulled him off. His father is a Dentist with lots of money and he will walk scott free. His lawyer got him a non jury trial, just a Judge. So the fix is in for an acquital.