Really? 20+ grown men with bullet proof vests, tazers, pepper-spray, etc couldn't subdue a teenage boy armed with a knife? The Toronto police force must be full of wimps. He was walking away from you when you shot him. Perhaps resisting arrest, even. Did you fear for your own safety or the safety of others when you had him trapped, alone, in that street car surrounded by other 'police officers'? If you did, you might want to consider a change in vocation. You can rationalize what you did to yourself and to the public, make excuses, give it names like 'excessive force' and 'reasonable conduct'. That boys family and anybody else with half a brain will call it what it was - 'MURDER'. Why does wearing a badge give you a free pass? —They aren't all bad...right?