In the wake of the Parkland school shooting, police and prosecutors are trying to determine what constitutes a credible threat. In a video posted to YouTube called "School Shooter," a local rapper insulted police and referred to recent mass casualty events. Now he's facing a legal battle and a potential long prison sentence. But many local attorneys argue that police and prosecutors are overstepping, and infringing on protected speech. Who's right? Our guests: Mark Foti , chair of the Monroe