First off it's good that he's dead. good work on the cops part.
But if you're honest about what happened the reason no kids were killed is because he didn't want to shoot them obviously. he had plenty of opportunity and time but he didn't. he also didn't show up in body armor with a rambo gun. just a handgun and he killed a window.
If he had been serious and came prepared to kill we'd be looking at another pile of dead kids.