LAS VEGAS AP - The man who stormed a Manhattan office tower with a gun, killing four people before killing himself, worked in the surveillance department of a Las Vegas casino, part of an industry built on watching for threats before they unfold.
Shane Tamura, 27, didn't show up to work his usual shift Sunday at the Horseshoe Las Vegas. Instead, authorities say, he got in his car and drove across the country to carry out a mass shooting inside the skyscraper that houses the National Football League's headquarters. A fifth person, an NFL employee, was wounded in the Monday attack.
As investigators work to uncover a motive, questions are being raised about how a man with a documented history of mental health problems - and a recent arrest for erratic behavior at another casino - ended up working in one of the most security-sensitive jobs in Las Vegas.
Caesars Entertainment, which owns the Horseshoe, confirmed Tamura's employment but has yet to disclose the nature of his role or whether he was authorized to carry a weapon. A spokesperson didn't respond to emails asking whether Tamura's job required him to hold a valid work card from the state Private Investigator's Licensing Board, which is needed to work as a private security officer in Nevada.
State licensing records show Tamura previously held a state-issued license as a private security officer, though it had expired in December.