Isolated incident blown out of proportion by the media. Gun laws clearly couldn't have prevented this. Life goes on, and gun rights flourish in the wake. 
Wait, so you REALLY think this is an isolated incident? The Columbine shootings? The Batman shooting? The recent shooting over the shooting itself? That asian guy who shot at a University? That sniper that was terrorizing couple of years ago?
Your folk is trigger happy, and this is by no means an isolated event, maybe it was blown out of proportions, but still its worrying.