Gun violence is down -- can Trump take credit? / Majority of Americans experience some form of gun violence in person, national study reveals / Gun violence claimed her father's life, now she wants to change the law / Watch live: Biden, Harris deliver remarks on combatting gun violence / This book is changing how cities fight gun violence / Gun violence is an epidemic in America -- gun safety can be the cure / Gun violence plagues Labor Day in Chicago and NYC / It's election season -- why aren't we talking about gun violence? / Study finds gun violence in rural America rises as deer hunting season begins / A shooter shows it's not just political violence, it's gun violence