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Saferstein Chapter Nine part 3 of 5 duration 7 minutes 49 seconds Saferstein Chapter Nine part 3 of 5 Saferstein Chapter Nine part 3 of 5	Saferstein Chapter Nine part 3 of 5 characteristics bullet gun twist grooves lands striations microscope bullets barrel side stage screen comparison water things class left split lot From Paul Rimmasch 0 likes 8 plays 0
Saferstein Chapter Nine part 2 of 5 duration 11 minutes 38 seconds Saferstein Chapter Nine part 2 of 5 Saferstein Chapter Nine part 2 of 5	Saferstein Chapter Nine part 2 of 5 barrel things caliber grooves lands gun bullet shoes characteristics guns glass driver screw marks scratches evidence barrels damage diameter bore From Paul Rimmasch 0 likes 9 plays 0