The gun used in last week's fatal shooting of UnitedHealthCare CEO Brian Thompson may have been created with a 3D printer.

Police say the suspect had a ghost gun, possibly made with a 3D printer, when he was arrested on Monday. Here's what to know about the increasingly widespread weapons and efforts to regulate them.

Luigi Mangione, who was arrested Monday in connection with last week's fatal shooting of UnitedHealthcare CEO Brian Thompson, may have used a 3D printer ... said during a press conference that ...

New laws will be brought in to stop the spread of deadly 3D-printed guns. Alarm has been raised over the availability of software and online manuals for criminals creating the weapons. New ...

including those made using a 3D printer, as long as they include metal components. In the absence of federal regulation, a handful of states have taken their own steps to clamp down on the ...

When they arrived, they found two 3D printers and 35 3D-printed lower receivers for a variety of firearms, including AR-15s, handguns and UZIs. (Lower receivers are the part of the gun that ...

Scientists have developed a 3D concrete printing method that captures carbon, demonstrating a new pathway to reduce the environmental impact of the construction industry. Scientists at Nanyang ...

But those sleuthing tactics are fast becoming old-school science as a new era of weapons increasingly hits the nation's streets: untraceable 3D-printed guns and silencers like the ones found this ...

More than a decade after the advent of the 3D-printed gun as an icon of libertarianism and a gun control nightmare, police say one of those homemade plastic weapons has now been found in the hands ...

Researchers have developed a 3D-printed device that generates twisting light beams with orbital angular momentum (OAM), a form of rotational energy that can carry more data than regular beams.

U.S. law enforcement have said the weapon found in the backpack of Luigi Mangione, who is charged in connection with the killing of UnitedHealthcare CEO Brian Thompson, may have been a 3D-printed ...