Back in the 1970s, I remember my older brother commenting on a famous basketball player's face, "Man, he has the kind of face you just want to punch."
Shift 40 years later to the Washington DC March for Life: Man, that kid has the kind of facial expression you just want to punch.
Whether you're pro-Covington Catholic kids or anti-, I don't think that assertion can be denied. The kid's look just seemed to beg for a slap.
But that doesn't make the kid evil. What it should do is, make everyone pause: am I really judging the situation, or am I viscerally reacting against his expression?
Video is a very powerful medium. Never over-estimate your ability to rise above it and think objectively.