The only thing we don't know is why he was running in the first place. What the video shows is 100% self defense. However you have to consider the fact that Kyle was breaking law by carrying a rifle under the age of 18. The Prosecutor is going to exploit the shit out of this and it's unfortunate. I personally think any 16 year old should be able to buy a long gun. I mean if we're going to trust them with driving why the fuck not?