CNN Forensic Files May 24, 2015 06:12:00
Plastic insulation as it squeezed through the dye during the manufacturing process. this process makes the wire its uniform size. >> those marks will be part of -- on that plastic insulation for a number of feet before it changes dramatically. >> lined up on a comparison microscope, there was no doubt. the wire from both bomb sites came from the same source. >> in fact, that these were produced on the same forming dye at the same plant. >> they also discovered both bombs used the same glue and the same cotton string. since both bombs appeared to be made by the same individual, this eliminated ...