Let me show you the magic graph that tells you everything. It’s got all the cool stuff; it tells the future, tells the past, tells your strengths, burdens, who's gonna be rich, who's gonna be overworked, the cause of the Healthcare crisis, the cause of every major financial collapse, and yes, even gun violence.This is a population distribution map of the United States. It tells approximately how many people we have at every age range. Who cares? Why is this so important to understand gun violence? Simple answer: Because people at different ages act differently.A few examples, young adults are...