Shooter's Background Emerges in Terror Investigation

President Obama said today that the US is making progress against ISIS in both Iraq and Syria. He said ISIS has lost a lot of ground and that air strikes have taken out many of its leaders. Part of his statement included a description of Sunday morning attack on the Pulse club in Orlando as one of many "small actors" who are hard to detect. "He appears to have been an angry, disturbed, unstable young man who became radicalized." Julie Brown of the Miami Herald reports on what we’re learning about Omar Mateen.