Filmmaker who made the documentary "Black Lives/Black Lungs" about the marketing of menthol cigarettes
Spartan Sports Network basketball announcer on returning to basketball this weekend after the tragedy of a mass shooting on the campus of Michigan State University
ABC News crime and terrorism analyst on the multiple causes behind mass shootings
Author of "The Unhackable Internet: How Rebuilding Cyberspace Can Create Real Security and Prevent Financial Collapse"
How to identify and help people with violent tendencies before they carry out deadly acts of aggression
