Virginia shooting raises questions

Virginia shooting shook the world. How does one madman can make such damages? Why does such psycho live among normal people? How safe are we really? Nobody knows. So, I think it is necessary to consolidate gun control. In Lithuania is quite difficult to carry a gun legally but in USA it is easier. Also police have to do their work better, they must be on time in right place and do everything what they can. It is a pity that not always it is. But the most important thing I do know - we must be kind to people, no matter what their status may be. In that way we can avoid such catastrophes. When we encounter people, we do not know the psychological status of these people. That is why it is just "good" to be "kind." In my point of view, somebody did harm to that man. That is why he has done such a terrible thing.