A weapons expert testified Thursday that the firing pin in the rifle allegedly used in the killing four years ago of a Bexar County sheriff’s sergeant appeared to have been altered by a sharp ...

In general, there are several ways a gun can be linked to a crime: striations on a bullet, gunpowder residue, trajectory, ricochet and bullet holes, hidden fingerprints, firing pin impressions and ...

Experts can often identify the weapon used based on rifling impressions on the bullet, or breech face and firing pin impressions in the primer at the base of the cartridge case.

The firing pin impression left on each of the five shell casings found near Lloyd’s body — and a sixth casing recovered from a car rented to Hernandez — was elliptical.

If these features were somehow bypassed, a conspicuously off-center firing pin impression would result.” It’s unclear if prosecutors plan to re-file charges against Baldwin based on the new ...

The firing pin impression found on the .22 caliber casings collected from the Wagner property had similar characteristics: The impression on the rim-fired cartridge started rectangular, but became ...

Regarding the recent Anniston shooting with over 100 casings, Young explained that all 100 pieces of ballistic evidence is examined to determine how many different guns were likely involved ...

Reattaching that firing pin into an undamaged, identical weapon would allow him to test fire it, he said, and determine whether the firing pin impression matched casings found at the scenes and at ...

Both the physical and digital replicas of found cartridges contain unique data that amount to a gun fingerprint — a firing pin impression, a breech face impression, an ejector mark and ...

It’s the forensic analysis after every shooting that helps investigators build their criminal cases and a database that stands 42,000 forensic images strong of Connecticut’s shootings.