Former FBI Special Agent Vito Roselli said one of the biggest challenges with safeguarding city buildings is that many lobbies are open to the public.

Roger Goodell alerted all NYC NFL employees to work from home at least through next week following the tragic mass shooting that left four dead at the league's headquarters.

Gun laws in the city have largely prevented the sort of mass slaughter common in the rest of America. The last killing of this scale in the city was at a fast-food restaurant in Queens in 2000.

The Park Avenue office building where Monday's shooting occurred remains closed, as Midtown workers expressed anxieties about recent violence.

Rep. Nicole Malliotakis spoke with Fox News Digital after the deadly shooting that left multiple people including a police officer dead.

Gun rights, which are protected by the Second Amendment of the U.S. Constitution, are a virtually untouchable issue for Republicans, who control the White House and both chambers of Congress and strongly oppose any encroachment on them.

The Park Avenue office building where Monday's shooting occurred remains closed, as Midtown workers expressed anxieties about recent violence.

Gov. Kathy Hochul (D-NY) called for Congress to pass a national “assault weapon” ban on Tuesday following the New York City shooting on Monday night. “Yesterday, New York lost four innocent lives in a horrific act of violence.