you brought up section 16 of the Criminal Code any you are a cop so you know what it says. It says not one word about mental illness sever or otherwise
you get away with murder under Section 16 NCR if and only if you prove beyond reasonable doubt 1) you did not know you were killing people and 2) you dd not realize it was wrong. Every word of Canada's NCR law is precisely chosen and is the result of a sieries of developments in first English Common Law and then Canadian Criminal law over 300 years as the legal system came to recognize certain cases the person is so mentally sick they truly do not even know what they are doing and are not responsible for their actions.
Vince Li on the Greyhound was apparently having full technicolor hallucinations and did not know he where he was or that he was even killing a human being. He thought he was killing a vampire or monster. So as a society in these very rare cases we act with compassion for the sick and treat them in hospital.
The evidence of careful planning and premeditation shows the Brentwood killer knew exactly that he was killing human beings, innocent kind people at that who had never done a thing wrong to him and were hosting him in their home.
You answer me something. Travis Baumgartner in Edmonton woke up one day 3 years ago in his mommy's basement and got yelled at for not paying rent. So he got angry at his Mommy and to get back at her, went to his job as an armored car driver, and on the random spur of the moment murdered the 4 other guards, all long time work colleagues of his, and with no plan of escape jumped in his truck and with zero chance of success tried to drive from Edmonton south across the US border with a bag of money.
I ask you was that the action of a sane person any more than the Brentwood killer's were? How can you say Baumgartner was any less nutty ?
Because Baumgartner claimed he was crazy too, and was given 40 years without chance of parole in the Penitentiary.