Forensic Agents News Today

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 thats been laid down here. they removed that, and theyre going to -- theyre 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 dont know how exactly the dev...

Citizens. erin? >> all right, deb, that will be interesting. at least the mother said that her sons were framed. so no doubt there is going to be serious questions there. i can see a memorial with a lot of flowers. youre at the sight of where the first bomb went off. what are investigators doing? >> reporter: you know, what is fascinating is that we have been keeping an eye on this location since the day the marathon happened. the finish line is not more than 50 feet ahead of me. and what is so ...

>> all right, deb, that will be interesting. at least the mother said that her sons were framed. so no doubt there is going to be serious questions there. i can see a memorial with a lot of flowers. youre at the sight of where the first bomb went off. what are investigators doing? >> reporter: you know, what is fascinating is that we have been keeping an eye on this location since the day the marathon happened. the finish line is not more than 50 feet ahead of me. and what is so strange, so odd ...

Russian newspaper writing this. you can bet weve been calling around to virtually everyone. we did hear from somebody in washington saying, no, we dont comment on the travel of private citizens. erin? >> that will be interesting. at least the mother said that her sons were framed. so no doubt there is going to be serious questions there. i can see a memorial with a lot of flowers. youre at the sight of where the first bomb went off. what are investigators doing? >> reporter: you know, what is fa...