No motive has been announced. A suicide note was found expressing grievances with the NFL and saying Tamura suffered from CTE, a source said. Follow for live updates.

An NFL employee was seriously injured during the mass shooting at the Manhattan office tower that houses the league’s headquarters.

Four people were killed in a shooting Monday evening inside a New York City office building. The gunman, who used a high-powered rifle to open fire in the Midtown Manhattan skyscraper, later died of a self-inflicted gunshot wound,

A gunman opened fire in a prominent Manhattan office building on Monday evening, killing four people and seriously injuring a fifth before dying from a self-inflicted gunshot wound, New York City officials said.