Simple. We need to have a STRONGER Gun control! Either we could Shutdown EVERY weapon shop that is open to the public, or we could create a law stating those who are allowed to purchase a weapon must show proof/license from the government that they have access for one.
Those who are in terms with the government such as the police force, SWAT, FBI, Military, etc. should ONLY be accepted for purchasing a weapon! Why should we let anyone walking down a street buy a gun?
Once again, only those with proof or evidence from the government that they may purchase. Agree?