I'll tell you exactly why. It has nothing to do at all with guns. Take guns away and they will make improvised explosives. Take those away and they will use knives. Take knives away and they will kill with rocks.
None of that is the answer.
Here IS the answer.
All of us, poor, rich, happy, or sad.. Our bellies are completely full but we are still malnourished. We have all the water we could drink but we are still thirsty. We just bought the new iPad but it still feel under-entertained.
We are all searching desperately.
The answer is God. Or more specifically Christ.
However, Ravi Zacharias explains what we have done with God...