Shane Tamura, 27, who fatally shot four people in the building that houses the National Football League's headquarters Monday, said in a suicide note that he had chronic traumatic encephalopathy, known at CTE,

Police have identified the man who they say entered a Midtown Manhattan office building wearing body armor and opened fire, killing four people with a high-powered rifle, as Shane Devon Tamura.

A New York City police officer and three other people were shot and killed in Midtown Manhattan office building on Monday evening, police confirmed. The suspect, identified as Shane D. Tamura, 27, of Las Vegas,