The tragic news of another predictable mass shooter is only made worse by a simple detail: a man with a history of mental health crisis doesn’t need a permit to buy or wave around a loaded semi-automatic rifle.

Security video circulated by police showed a man walking from a double-parked car into the Park Avenue tower carrying what police identified as an M4 Carbine, a large semi-automatic rifle … modeled on a fully automatic rifle used by the U.S. military. In Nevada… no permit is needed to buy a rifle or carry it openly in public. The security camera system flagged the gunman as a potential threat requiring immediate attention as he walked toward the building and seconds before he burst into the building’s lobby, according to two former federal officials familiar with such systems. A widely circulated photo showed the Nevada permit issued to Tamura allowing him to legally carry a concealed handgun. He had recently worked as an overnight security guard at the Horseshoe Las Vegas hotel-casino, Tisch said.
On two occasions, in 2022 and 2024, records show law enforcement officials detained Tamura for up to 72 hours under a “mental health crisis hold,” which requires the detainee to be evaluated at a hospital, ABC News reported.

The security cameras can identify a threat in the seconds before a mass shooting, proving that Nevada could have identified the threat years before.

It’s the same system of identification, such that using risk detection at the last steps of mass murder instead of years prior is the real story here.