April 15 (Bloomberg) -- Dan O'Gara, an employee at Marathon Sports on Boylston Street in Boston, talks about the explosions near the finish line of the Boston Marathon and the injuries he witnessed.
Powerful explosions killed two and injured 23 near the finish of the Boston Marathon, police said. He speaks with Trish Regan and Adam Johnson on Bloomberg Television's "Street Smart." Richard Falkenrath, a principal at the Chertoff Group and Bloomberg contributing editor, also speaks. (Source: Bloomberg)