CNN Forensic Files July 26, 2015 05:18:00
And discovered some unique marks on the side of the rods created as they were manufactured. >> individual characteristics that are imparted from the tool or die on the work piece are not the same in hour one of that die's life as they would be in hour 8, 12, or hour 16. >> these marks indicated to mr. tobin that the rods found in kopenheffer's home and those found with the ransom notes were all made on the same day at virtually the same time. >> something on the order of minutes. this was one of the best associations i've ever had with regard to the fabrication characteristics. >> police also ...