BREAKING - Details of new bullet testing in Tyler Robinson case - What the State wants to do

The ATF's comparison of the bullet jacket fragment to test-fires from Tyler Robinson's rifle were inclusive - they were close enough that his gun can't be excluded as the source, but the marks aren't distinctive enough to rule out other similar guns. So now the State wants to do additional testing on the bullet jacket and bullet lead fragments recovered during the autopsy. We look at the testing they want to do and talk about what it means.