Nevermind the fact that this CHILD wasn't supposed to have the gun (i.e., he came about it illegally) and even if it had been stored properly, once again, if someone is bound and determined to get their hands on a weapon, then that's exactly what's going to happen.
Again, blame the user, not the tool.
And in other news, how many "yutes" with illegally-obtained guns offed each other in Detroit, Chicago, NYC, LA, or DC today/