i'm rick deloria. like to start this morning by thanking the first responders from boston ems and boston fire department and the volunteer physicians, nurses and medical staff from the community have volunteered at the marathon. their services and heroic actions saved lives. we continue to work shoulder to shoulder with our partners at the police department and massachusetts state police as well at our other agencies. our mess is clear to bring to justice those responsible for the marathon bombing. the american public wants answers and the citizens of the city of boston and commonwealth want and deserve answers. this group of dedicated men and women standing before you pledge to do everything possible to get those answers. this remains a very active investigation. our ongoing investigation in various locations throughout the area goes on however there are no known additional threats. we process the crime scene which could take some time. the citizens of massachusetts and the city of boston should expec

the special agent in charge, rick deloria will have the point. it will be monitored very closely by director john mueller and his counter-terrorism team at headquarters and they will be minute to minute on this until k ey have answers. >> pelley: in terrell brown's report, you heard jonathan elias, a reporter for our station in boston, wbz. he was right there on boylston street as the bombs went off. can you tell us what you saw? >> reporter: scott, we were not more than 30 feet away from when this blast went off. let me sort of set the scene of what was happening at that moment with the marathon. we were a good four hours, maybe four hours and two minute into fe third and final wave, so the crowd, as far as spectatores, began to slowly thin. i guess that would be the only silver lining in any of this. all of a sudden, coming across the finish line, we were watching and videotaping folks, high-fiving them and cheering them on and all of a sudden this blast went off. shook us in our feet and we were looking right at where it went off, so i saw the

and again, my name is rick deloria. let me recap our investigative efforts this afternoon. yesterday at this time, our collaborative efforts were on saving lives and treating the injured. resources were directed to ensure the safety of our community. as soon as those important tasks were completed, first responders focused on a criminal investigation. the joint terrorism task force composed of more than 30 agencies, including the boston police, the massachusetts state police, atf, hsi, united states secret service and others responded to the scene. many of them were already there as part of the general security firm for the marathon already in place. the first step law enfor me to say enforcement took was to preserve the area. this morning, the fbi along with boston pd, massachusetts state police, and atf, officially began its forensic evidence recovery. their goal was to recover physical items related to the blast. those items have been recovered and are being sent to the fbi's laboratory in quantico, virginia. there, specialized examiners will reconstruct the device or de

told you yesterday that the fbi has taken charge of the investigation, special agent in charge rick deloriaill speak shortly. it's important to clarify that two and only two explosive devices were found yesterday. other parcels, all other parcels in the area of the blast have been examined, but there are no unexploded bombs. there were no unexplosive devices found. over 150 people were injured yesterday in the blast. some gravely. our thoughts go out to all of those injured and killed and to their families and friends. i personally want to thank the extraordinary first responders for their extraordinary work yesterday. every single one of them, those who were on site and those who got to the site promptly thereafter performed beautifully as have the area hospitals and i've been calling around to the heads of the hospitals personally to thank them as well. it's our hope that tomorrow we will organize an interface prayer service to help our community heal. we don't have details but we will prove those when we have them. there was a support center opened yesterday in the castle opposite the pa

here is fbi special agent in charge rick deloria just moments ago. >> this remains a very active investigation. our ongoing investigation in various locations throughout the area goes on. however, there are no known additional threats. we continue to interview various witnesses and process the crime scene. which could take some time. jon: mike tobin is live from massachusetts general hospital in boston. it is ground zero for the critically injured. have doctors learned anything, mike that could help with this investigation in. >> you know, jon you heard the reports that the bombs were packed with ball bearings. the doctors here say they are removing from the patients both pellets and nails in addition to that. they are removing them with such concentration it leads the doctors to conclude that these are not things that were just picked up from the environment of the blast, these are things that were packed into the bomb. >> i think we are still getting details of all the events that happened, and obviously it's very difficult to conclude, based on initial impressions. i won't exclude completel

here rick deloria. >> among items are pieces of black nylon which could be from a backpack, and whatr to be frag tments of bb's and nails, possibly contained in a pressure cooker device. >> bill: stunning, you know to think ordinary pressure cooker you buy in any department store and filled with nails, shrapnel and backpack rudimentary, it could have been a lot powerful and done more damage? right? so, again, what does this tell us, if anything? >> well, i think it tells us that it's obviously an individual or group of videos individuals that know what they are doing but also know what they are doing with the kind of every day supplies that you and i could go buy. >> right. >> and fashion into a relatively crude but, as we saw in this case a still powerful explosive device. >> bill: which might make it hard story track down. right? >> i think it makes it a lot harder to track down. % i mean these things are available in any department, and we are not exactly sure what the explosive ingredients were. what was it gunpowder or basically fertlizer? i talked to someone in the pentagon yes