A growing sense of entitlement is leading to gun violence in the U.S. Many people think they are entitled to guns, and are entitled to control the lives of other people. But this isn't the case. Let's be clear -- in life, we are entitled to but one thing: our own lives. Apart from the air he breathed to help sustain his life, we are not entitled to anything else -- no person, no shooter, is entitled to kill anyone.