Yesterday morning, a former Navy reservist shot and killed 12 people at the Navy Yard in Washington, D.C., before he was killed by police. The mass shooting at a secure military facility was the deadliest such attack since a gunman killed 26 at a Connecticut school last year. The suspect in the Navy Yard shooting was found with three weapons, including an assault rifle. In the wake of the tragedy, some lawmakers are calling for stricter gun control laws. Gun rights’ activists say the focus should be on strengthening mental health services. Guest host Steve Roberts and a panel of experts discuss the problem of gun violence.