Well, lets consider the question for a moment with the logic that is often used by the Democrats.
1. The Democrats are generally for gun control. If someone had had a gun on campus the crazed killer likely would have been stopped before he ended 32 lives. Because the Democrats have limited a persons ability to own and carry a weapon they stand responsible for keeping some of these innocent people from protecting themselves.
2. The Democrats have engaged in class warfare for a long time. The rich are evil, selfish, greedy, and should be punished (most often through the tax code). Now we have a young man who by his own admission went on a killing spree to give "rich brats" what they deserve. Because Democrats have often made political careers vilifying the rich they now have an individual who has taken their 'punish the rich' concept to the extreme.
So, according to typical liberal logic the Democrats/Liberals in this country are responsible for the massacre at VT.
Oh, you think this is absurd. Well good! Then you will also think it is absurd to blame the massacre on conservatives who believe the Constitution says what it means when we find the words, "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."
The Constitution says the right to keep and bear arms shall not be infringed.
Infringed - To encroach, to trespass.
The right to keep and bear arms shall not be encroached upon, or trespassed upon.
The modern liberal politician say the right of the people to keep and bear arms shall be infringed.