They used excessive force. Maybe if they weren't out to kill him he would not have done any of that (which is highly suspicious, they could have framed him for all we know).
Let's be honest, America is racist and un-safe place for people of color and minorities.
They cornered him. What was he supposed to do? Police do that. They chase you and then they play it like you're the suspect. Maybe he had a legal gun because after all them Muricans love their second amendment.
Wow I'm very disappointed in the response from Pakistanis here. We are no different from Black's. This kid was hunt like a dog. Whites hate us too. Racism is real and we are persecuted. It's not easy for minorities, we gotta constantly look over our shoulders.