Blast Pattern News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Miguel marquez, cnn, gettysburg, pennsylvania. >> pretty disturbing there. let's dig into this further with anthony may, a former explosives expert for the atf. anthony, first question, what will investigators be look for to determine if this was a bomb? >> good morning, pam. what they'll be looking for is a telltale signs of an explosion. that's yet to be determined. this is all speculation but it's important to speculate because if this was a terrorist event, a bombing, then -- and it was successful, then there are others waiting. going through the wreckage, looking at all the components, th...

People and video that it exploded in mid flight. so you have this fireball in this sky, seen by other pilots and people on the ground and the pieces coming down in the atlantic ocean in about 130 feet of water, similar to the depth of this crash. because it exploded that led to the speculation it could be terrorism or it could have been sabotage or a bomb on board by who knows who. and that's why, for a long time there was a joint investigation with the fbi and the ntsb working together to get to the bottom of it. ultimately thankfully because the plane was in shallow water, divers were able t...

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 ...

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 s...

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 ...