CNN Forensic Files February 13, 2014 09:32:00
Explosives were called in to investigate. >> we found metal fragmentation. we found pieces of pipe nickel. we picked up any pieces of wire we found, batteries. we did find some 9-volt batteries. we picked up everything. >> this clearly eliminated a gas line explosion. these were the ingredients of a pipe bomb, a homemade device in which gun powder is packed into a steel pipe closed with metal end caps. in this case, fragments of red painted end caps were found in the rubble along with 30-gauge blue, insulated, silver-coated copper wire. >> this was not a very common wire. it could be a particu...