The article fails to refute the most legit argument against gun control that I've seen: "If we outlaw guns for all citizens, only criminals will have guns," which is irrefutable. As for the arguments that it does address:
4. As has been said before, guns on their own can't kill a person, as they don't possess the brain capacity necessary to do so. Just because it CAN be used to kill someone, doesn't mean it should be outlawed. Just because it was DESIGNED to kill someone, doesn't mean it should be outlawed. Nuclear fission was originally designed to kill, but we found a way to use it to provide another source of electricity. Likewise, people have a way to use guns for sport and entertainment.
3. Nothing that hasn't said before; guns can be used for sport, not just killing. "Oh, but those gun sports are used to practice killing others." Then why don't we just outlaw ALL combat sports. (Fencing, Archery, Wrestling) You "practice killing people" in those sports, using equipment intentionally designed to be weapons. And by the way, if someone is accidentally killed by a gun, it IS a misuse.
2. This guy doesn't seem to understand the relationship between offense and defense. The mere threat of instant death by a gun is enough to deter most criminals. Less than 1 percent of the guns used in self-defense are actually fired back at the attacker.
http://scienceblogs.com/deltoid/2003/04/10/duncan3/
1. This is the only rebuttal that has any weight. It IS a fallacy to assume that it is okay to have guns just because the Constitution or the Supreme Court says so.
Most of the fear toward guns stems from ignorance. Just know basic gun safety and no one will get hurt.