Couldn't agree more, and I say that as someone who's aware of what a dangerous and chaotic place that part of the border is. I've spent a lot of time around the border, and on both sides of it, in California/Baja.
According to the NPR News piece, the union rep for Border Patrol agents says it is alright for agents to shoot Mexican children who throw rocks at them.
"There are so many non-lethal weapons available to law enforcement." Drew tweeted, "Has the Border Patrol even considered them?"
The child's body was found on the Ciudad Juarez side of the fence. By all accounts available at the time of this blog post, he never crossed over on to the US side, and was not attempting to do so. He was unarmed, and he was shot in the head.