Ghost guns: Eyewitness News investigates a growing menace

They're called ghost guns - powerful handguns that you can buy online without a background check or license and put together in minutes. They're just as deadly as a regular gun but they can't be traced. Police are seeing an explosion of the homemade firearms across the country.

Eyewitness News was granted exclusive access inside the ATF, the forensic crime lab and the shooting range to show you what's being done about this "emerging threat" and how they're shattering the lives of families.