https://ift.tt/2wwdHAe Catching Killers by Matching Tiny Marks on Bullets Gun Control, Firearms Once seen as crime scene detritus, bullets and ejected shell casings are now recognized as vital pieces of evidence. IAN URBINA and GEORGE ETHEREDGE for THE NEW YORK TIMES https://ift.tt/2zdEVdL November 16, 2018 at 05:30AM

By IAN URBINA and GEORGE ETHEREDGE for THE NEW YORK TIMES from NYT U.S. https://ift.tt/2OMLAAD