phil. >> jones that what is astonish for so many people when they see debris field behind me and fact no nobody died just 21 gyres only two of them serious one of them a child but we're about 100 yards away from what appears to be the epicenter of the explosion not only did it sound like a bomb. it looked like a bomb went off. over there on the center you can see some red walls, that appears to be a pizza restaurant that had been closed for the past year. and a lot of the focus on investigators is whether a natural gas explosion happened inside that. now take a look from arrow, the ariels of the debris field really give a -- a big impact picture for you. on how big this was of people two miles away so they could hear it. there's a so many sourceses here busy saturday around noon. there's an l.a. fitness, restaurant couple of banks department storeses, an a amazingly only 21 people were wounded suffered injuries and here's how one witness described it who lived nearby. >> my wife and i were up there working out. my three kids were in the child care area. while we worked out, we picked the