inside. twisted nails, screws, screw heads and items like that to act as fragmentation projectiles. and we ve seen a lot of evidence of that. even seen eyewitness testimony where people had nails and screws projected across their bodies. more importantly is the blast device, it knocked people physically off their feet. i ve been around a lot of bombs. i ve been in the radius of multiwill suicide bombings and the blast effect tells you this is not a some of the things coming out suggest that redundancy was built into this bomb and it was not as crude a design as the typical they know you would see from a lone wolf. there was a 12 volt 2.1 battery. the plunger was one you hold in your hand so he had a couple