Here's a brief overview of one counter argument: CT is already hugely antigun, is surrounded by anti-gun states. Gun control doesn't stop things like this unless you go door to door collecting every gun in the country. And I guarantee that wouldn't go well. But the argument now is just crass. On both sides. If you're against guns just because of tragedies, then fine, but outlawing something because 100 people in 300 million have gone crazy and shot up crowds is like banning gay marriage because some gay people are promiscuous, or banning cars because sometimes people ram buildings with them in order to steal ipads.