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 ...

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 ...

Since the dawn of modern fingerprinting, lifting prints from bullet casings has been thought to be impossible due to damage caused by the intense temperatures, gas, and friction of firing a gun. A new ...