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Forensic scientists work with the only clue recovered from a multiple-victim shooting: a 12-gauge shotgun. Scientists use unique methods to lift the serial number from the weapon in order to trace it to its owner. [also marked as S7:E40]
First Air Date : Apr 21, 1996
Last Air date : Jun 17, 2011
Episode : 400 Episode
Season : 14 Season
Runtime: 23:14 minutes
Country: United States of America, Germany
Cast: Peter Thomas
