It's time that we took action on this. Obama's words are comforting, but he offers no specifics. There are a number of things our elected officials can do, including banning assault rifles and other guns and ammunition meant only to kill large numbers of PEOPLE (not deer or ducks). Possibly just as important, a delay in allowing someone to buy a gun while a thorough background check is run, and a psychological evaluation such as MMPI is used. It sounds as though this guy would have flunked the test. So would have the other shooters involved in such mass terrorism.
These people are domestic terrorists. Just as much as the Swedish killer, and the Oklahoma bomber.
The Constitutional authority that NRA and others cite has no relation to our current society: "A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed." No one envisioned at that time the kinds of weapons that would be invented and used. The weapons then were slow and used to kill game, deer, etc., for sustenance and to protect the home in the ABSENCE OF POLICE or more formal security or police forces. There were more informal "watch" groups but Boston seems to have been the first to start a police force in the 1830s.
The Constitution was never meant--contrary to Conservative dogma--to be set in stone. It was always meant to be the framework on which changes would inevitably be hung. Why else would it allow for amendments?