Oh please... not another "school-shooting/why would God allow it" thread...
These types of sentiments are the province of believers. Atheists like myself are usually the ones holding those comments up to the light of day, trying to get believers to recognize the statement for what it is; a small step towards understanding how incompatible their notion of all-knowing all-powerful all-merciful biblegod is with the real world.
If you can convince believers to stop saying stuff like this, we'll all be happier.
In fact, while you're at it maybe you can put the kibosh on "This happened because God isn't allowed in schools" too. That'd be swell.