‘Stop Gun Violence' Founder Speaks on Mass Shootings

Once again, an AR-15 was the weapon used in a mass shooting, this time in Pittsburgh. Plus, a new study finds gunshot wounds send more than 8,000 kids to the hospital every year in the United States. And a surprising new survey out of Florida finds a majority of those surveyed want the governor to ban semi-automatic weapons. John Rosenthal, co-founder of the Boston-based gun restriction group “Stop Handgun Violence” joins Sue to discuss the groups plans to unveil new billboard Thursday.