NYC Mayor Eric Adams shared new details about the deadly Midtown Manhattan office shooting, including a possible NFL connection and the gunman's cross-country journey.

Four innocent people were killed including a New York City police officer and a security guard after a gunman opened fire at 345 Park Avenue Monday evening.

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.

NEW YORK CITY - A gunman charged into a prominent Midtown Manhattan skyscraper during rush hour and fatally shot at least four people, including a New York city police officer, before killing himself, authorities said July 28.

The gunman in the deadly Midtown Manhattan shooting, Shane Tamura, wrote about the brain disease CTE in a note obtained by investigators.

At least one police officer and one civilian were shot inside 345 Park Avenue in New York City, according to NBC News. "New Yorkers: there is an active shooter investigation taking place in Midtown right now," New York Mayor Eric Adams wrote on X. The New York Police Department advised people to avoid the area.

Residents on and around Park Avenue in Midtown Manhattan in New York City have been urged to stay safe following multiple reports of an active shooter, who is said to have gunned a police officer

Police officers in New York City responded to reports of an active shooter in a midtown Manhattan building that houses Blackstone investment firm and NFL headquarters.