I see some people arguing against the extended magazines such that should they have been outlawed, Loughner couldn't have created such a high victim count. If I recall, the VTech shooter carried multiple handguns and Loughner could have done the same thing. I would even argue that a novice or semi skilled swordsman with a sharp blade could have done a massive amount of damage in that setting as well. A homemade bomb could have done as much or even more. I can think of several ways that someone could easily attack many people in a short amount of time in a confined space where a large capacity magazine wouldn't even be needed.