Listen up dumbass, all that matters is what the letter of the law says.
In this case it says you can pump as many bullets up this guy's ass as you want (as a police officer). Add points if the suspect is moving after you already killed him.
I know this might sound a tad cruel, but that is the law!
If you dont like the law thats fine, but then run for office and have things changed.
You cant fault the officer for having followed his training.
That's no wherer near what the law reads.
You have to qualify it with what the target was doing.
And there is the concept of excessive force in canadian law.
So the question is "is a man on a streetcar with a knife surrounded by 20+ cops a threat warranting gunfire?"
Is it really that hard to have guys train tasers/stun guns on the area around the bottom step of the streetcar? If the guy descends the stairs have a few guys fire stun guns at his chest. SG's have a effective range of 20 feet.
Hold off on the bullets till the coordinated stun gun shots miss or fail.
I doubt the guy could clear 20 feet before being brought down by stun guns.