Every time a gun fires a bullet, it puts unique markings on the exterior of the ammunition. Northeast Ohio Crime Gun Intelligence Center uses technology to match shell casings and guns.

Part of his job was tracing the guns recovered at crime scenes. In 2019, one of those scenes was inside a cartel ranch near Guadalajara. Tim Sloan: There was um dead bodies everywhere. There was a ...

As firearm sales have fallen, so have deaths and mass shootings. Trace reporter Chip Brownlee breaks down this year’s gun ...

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.

When a gun is recovered at a crime scene, it's the job of the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) to trace it. Tim Sloan was ATF's attaché in Mexico from 2019-2022.

The firearm found on the suspect in the murder of the UnitedHealthcare CEO is believed to have been an untraceable ghost gun, according to police.