Workers returned to 345 Park Ave., on Monday​ under the watchful eyes of NYPD officers and a surplus of security after the ...

A New York City office building where a gunman killed four people then himself has reopened a week after the deadly shootings ...

During evening rush hour in New York City on Monday, a man calmly walked into a Park Avenue office building lobby and killed ...

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

Here's how NFL players, coaches and executives reacted to a mass shooting at the league's office building in Manhattan: ...

The 27-year-old man who shot and killed four people at a Midtown office building on Monday carried a note in his pocket, ...

The NFL released a statement Wednesday expressing gratitude for a flood of support it received after its headquarters at a ...

Brian Daboll and Aaron Glenn offered their condolences to those affected by the shooting at the building of the NFL's offices ...

The gunman left behind a suicide note in which he claimed he had chronic traumatic encephalopathy (CTE) — the brain disease ...

Shane Tamura, the Park Ave. gunman who killed an NYPD officer and three others before taking his own life, left behind a ...

NFL Commissioner Roger Goodell revealed one employee was hospitalized after a shooting at the league's headquarters in ...