It’s a stark and alarming trend: Mass shooters engraving bullet casings with cryptic messages, leading officials to speculate about their motives and, more recently, their political affiliations. It ...

A pioneering new test that can recover fingerprints from ammunition casing, once thought nearly impossible, has been developed by two Irish scientists. Dr. Eithne Dempsey, and her recent Ph.D. student ...

In the wake of Wednesday’s deadly shooting at an Immigration and Customs Enforcement (ICE) field office in Dallas, Texas, authorities said they had recovered shell casings inscribed with the words ...

Scrawled messages on bullet casings and weapons left behind have popped up at several high-profile shootings over the past year. The seemingly unusual practice is actually reminiscent of a ...