When Cody Wilson revealed the world's first fully 3-D printed gun last year, he showed that the "maker" movement has enabled anyone to create a working, lethal firearm with a click in the privacy of ...

For the last hour, in a backroom of a gun range in Arabi, Louisiana, I’ve been building Luigi Mangione’s gun. Well, not his, in the literal sense. The not-quite-finished firearm in my hands is very ...

Add Yahoo as a preferred source to see more of our stories on Google. For decades, America's detectives have made breakthroughs in crime using gun traces. A homicide investigator typically uses ...