To be clear, the initial judge didn't give the boy a "get out of jail free" card or "a pass." The judge was deciding whether to allow the prosecutor to try the boy in an adult court. The judge made one decision, the appeals court overruled. The system worked as designed.
It is an interesting time. I hear a lot of talk about the ills of the Clinton-era crime bill taking away judicial discretion, imposing mandatory minimums, three strike laws, etc. And those things deserved to be debated, especially as to how they were applied differently in different communities. The flip side though