bellamysgirl said:
Even if we go with your 'continuing act' argument vadinho, it's still comes down to the proportionality of the response is. Stabbing to prevent a continuation of If shoplifting would be out of question; raping - it's a different story.
The stabbing was - in this case - an act of self defence when the two thugs attacked him when he interrupted their illegal act.
Timeline:
X - they began their crime
X+2 - he noticed it. Seeing there were 2 of them, armed with metal cylinders, he armed himself with a small knife.
X+3 - he confronted them.
X+4 - shocked at being confronted, the two criminals retreated to briefly reconsider their options
X+5 - as stated by the criminal himself, the two criminals decided to attack the victim
X+6 - in response to this assault, the victim defended himself by brandishing his knife
X+7 - the drunk criminal impaled himself on the knife