Chapter 1. Guns in America -- Chapter 2. Crime in America -- Chapter 3. Justifiable homicides in America -- Chapter 4. Mass shootings in America -- Chapter 4. Mass shootings in America -- Chapter 5. Suicides and accidental firearm deaths in America -- Chapter 6. Gun control in America -- Chapter 7. International comparisons of homicides and guns -- Chapter 8. Evidence-based solutions and a proposal to reduce firearm violence.