I completely agree with everything you said except that I don't feel the least bit bad for him.
It shouldn't have happened. Things like this shouldn't happen.
Do I feel even slightly bad for this guy that he's laying in a hospital bed with stab wounds? Nah. At least he got to live, unlike his victim.
I do feel bad for his family, but only because they somehow hitched their wagon to this PoS and probably love him - so I'm sure this is difficult for them.