There were 23 shell casings and 13 bullet fragments recovered from the lobby of 345 Park Avenue and 24 spent shell casings on the 33rd floor, police said.

The New York City office building at 345 Park Avenue where a deadly shooting occurred serves is the headquarters of investment firm Blackstone, as well as the NFL and Rudin Management.

The New York Giants are among those around the NFL community reacting to Monday night's mass shooting in Manhattan.

A Nevada man recently traveled to New York City, entered a Manhattan building wearing body armor, carrying an M4 rifle, and fatally shot four people Monday evening, including a New York Police Department officer and injured another,

The gunman in Monday’s mass shooting in Midtown had bottles of antipsychotic medication in his Las Vegas studio apartment, police said after executing a search warrant. Police said Shane Tamura, 27, killed four people Monday,