Agree, it will be interesting to see the prosecution's case vs defense case on this one.
Prosecution, Malice aforethought, pre meditated: after party, Nick went to his guest house, got more and more angry, waited til parents asleep, got a sharp kitchen knife. Parents had cut him off of funds, were “causing him stress”, needed to be eliminated. (My ideas only, just imagining on above details)
VS, Defense:Schizophrenia, Nick “snapped”, he was embarrassed at Conan’s party, years of resentment had built up, mental illness, schizophrenia, medication change, drug use ( maybe meth), extreme stress.
I’m ok with either as long as Nick is put away for life in an institution. Too dangerous to be out in society.