It's causing an uproar because lacking any real focus the majority of US citizens wander about aimlessly seeking something to rally for or against. Matters not which,only a cause for action.
Do not take the above to mean I do not feel the kid we're talking about isn't deserving of severe punishment. I do.
However I feel for a young man (who has a life wasted in the land of opportunity) so deluded by radical groups bent on creating death and destruction. How did he (and his brother) become so out of touch that killing innocents became the only action available? That's the story behind the image. If it's not it should be. No one was paying attention.