Investigators believe Shane Tamura, of Las Vegas, was trying to get to the NFL offices after shooting several people Monday ...

The man who killed four people at a Manhattan office building bought his AR-15-style rifle and getaway car from his Las Vegas ...

The deadly shooting at a New York City high-rise office building Monday night raises new questions for CEOs and businesses as ...

The medical examiner confirmed that Shane Tamura died from a self-inflicted gunshot wound, but has not yet made a ...

Authorities say the man who killed four people at a Manhattan office building bought the rifle he used in the attack and the ...

The attack on a seemingly secure building has rattled workers and prompted managers to examine whether they are adequately ...