Ta Pt News Today

Fingerprint of the individual who made it. >> reporter: a british security source tell us cnn a timer was found on the device, that its clear that although this was a crude bomb, it was intended to cause much greater damage. >> were only aware of one device, so we now have remnants of that device. its been examined by our experts. >> reporter: one source briefed on the investigation says an initial assessment of the bomb indicates its highly likely to have contained ta pt, an unstable explosive ...

>> youre absolutely right. and in a way the crudeness of the devices which are forced upon the terrorists actually makes it harder for law enforcement because you cant use a cell phone to debt nature. you cant radio debt nature an explosive device in the tube. so you have to use a timer or something like that. while that complicates it for the terrorists, it makes it infin atel harder to detect. you cant jam cell phone signals, but again, it makes it much more critical and it makes it harder for...

Know or at they at least have a suspect and likely know that there is more explosive material out there that hasnt been used or there could be people who are unaccounted for. >> i see. and so as for the device, analysts say it appears to be crudeel made. it did have a timer. it may have contained explosive ta pt. what does that say? how does that give them information? >> it gives them a wealth of information. first of all, ta pt is very hard to make without killing yourself. and it is very hard...

Does this look like the mark of isis or is there any way to know that? >> ta pt is certainly the go-to explosive for isis right now because you can make it at home with peroxide and as he tone which you can get in stores. but theyre going to claim it no matter what. and i dont believe it was anything more than an isis inspired attack, if that. it was somebody who was not in contact with them, who took this upon themselves to do it for whatever reason he felt he needed to contribute to jihad. >> ...