Both sides of the gun control issue have spoken up. One side claims that if it had been more difficult for the shooter to obtain the guns, the incident might not have happened. The other side claims that if another student or a teacher had been armed, the death toll could have been lower. The problem is both sides are right.
The cat is already out of the bag on the issue of gun control (I do not own a gun). Fifty years ago we might have had a chance, but now there are 235,000,000 firearms owned in the United States (source: gunsafe.org). Because this number is so huge, I believe the NRA is now correct. If you outlaw guns, the only people that will have them are those who do not care what the laws say. Strictly from a practical point of view we must allow good, law abiding people to own guns. There are already plenty of laws in some states that attempt to restrict gun ownership, but a total ban would only mean that criminals would be armed, and not the rest of us.