left in one hotel room. is there evidence they were extremely prepared or how easy this was? >> it is very easy to make these bombs, very easy to acquire this stuff, boil the peroxide, acetone, make the detonators. this is all on the net. none of this is secret. with any of these explosives, test this stuff in an open area and test it until they get it right they were testing this in syria and iraq to make all these vests go off. that's what terrifies the french. six of them did go off. that's worth looking at is people trained, experienced just as they were in all the shooting incidents where they had the trigger control. this is what toll d me these