believe the bomb went off. the forensic agents, the fbi and atf were here, and picking up physical pieces of evidence. this is a brand new concrete that s been laid down here. they removed that, and they re going to they re testing things, the blast pattern, bringing shrapnel out of pieces of stone and concrete. back here, you can see the windows are still blown out. all of that is going to be analyzed so investigators can understand how this device work. they still don t know how exactly the device worked, how it was put together. and the impact of the shrapnel. here a somber mood, people reflecting and realizing that tamerlan was standing pretty much where i am. we re learning more about his widow, katie russell. more information about her, she said through her attorney that she had no idea what her husband
physical pieces of evidence. this is a brand new concrete that s been laid down here. they removed that, and they re going to they re testing things, the blast pattern, bringing shrapnel out of pieces of stone and concrete. back here, you can see the windows are still blown out. all of that is going to be analyzed so investigators can understand how this device worked. they still don t know how exactly the device worked, how it was put together. and the impact of the shrapnel. all of that is being investigated. here a somber mood, people reflecting and realizing that tamerlan tsarnaev was standing pretty much where i am. deborah, appreciate that. we re learning more about tamerlan tsarnaev s wife, katie russell. more information about her, she said through her attorney that she had no idea what her husband was planning. her attorney says she s
absorbed most of the impact. right here, this is where they believe the bomb went off. the forensic agents, the fbi and atf were here, and picking up physical pieces of evidence. this is a brand new concrete that s been laid down here. they removed that, and they re going to they re testing things, the blast pattern, bringing shrapnel out of pieces of stone and concrete. back here, you can see the windows are still blown out. all of that is going to be analyzed so investigators can understand how this device work. they still don t know how exactly the device worked, how it was put together. and the impact of the shrapnel. here a somber mood, people reflecting and realizing that tamerlan was standing pretty much where i am. we re learning more about his widow, katie russell. more information about her, she said through her attorney that
happened, what went wrong, will be based on forensic science because the records and everything that was in that facility that could tell them things like how much and what sort of chemicals and what kind of fertilizers, that was obliterated along with the plant itself with that terrible explosion on wednesday night. so going in there, and everything in that explosion zone is considered evidence. that would include say the debris, that would include the kind of damage that was done, the blast pattern coming out from the plant itself. it would even include the victims bodies and that s one of the reasons they have not been released to family members. because they, too, are part of the investigation. they need everything in there behind me to help try to come up with a solution to figure out what happened. martin, thanks very much. we ll stay on top of this story together with you, as well. heart breaking story, indeed. just ahead, questions about
people who may have been communicating information. that s why so many of these pictures, you know, you think about this huge montage of pictures, layer upon layer upon layer. that s what all the investigators are looking at. you ve got also, chris, the forensic teams. they re going through the evidence. they re look agent ting at the patterns. a trk atf, they re so good at determining where the bomb came from, the direction it took. that s crucial. we ve been showing a picture of this bag, almost like a grocery bag that was on one side of the divider. then it was moved to the other side of the divider. people i m speaking to, they re telling me stay away from that. that doesn t look right. because the blast pattern if you look at the metal railing, it blows into the mailbox. if that bag, that plastic bag, that paper bag had been the source of the device, then the railing would have blown in the other direction. again, they ve got to look at everything and parse it out and