from the linked report "Young grabbed the boy's 14-year-old friend and punched him in the mouth, knocking out a tooth, Jones said".

Had he succeeded in beating them all to the point where they would have retreated or posed no threat,guess who would be doing time?

I can't critisize his initial reaction/action though.I might have done the same.I'll resist the temptation to describe the end result had I been involved...