The glittering skyscraper where hundreds work became the scene of New York City’s deadliest gun attack in 25 years when a man entered the lobby and started shooting.

The deadly Park Avenue shooting happened at one of the the most exclusive addresses in Midtown Manhattan — the “Blackstone Building," which is home to financial giant Blackstone, the NFL and accounting firm KPMG among a slew of other corporate names.

Five people were shot and four killed by the 27-year-old gunman Shane Tamura, when he opened fire inside an office building at 345 Park Ave. on Monday evening. Among the victims were a Police Officer,

A 27-year-old man wearing body armor and carrying an M4 assault rifle shot and killed four people, including an off-duty police officer working security in a Midtown Manhattan office building, officials said during a press conference Monday evening.

NEW YORK (Reuters) -A spokesman for audit and advisory firm KPMG said in a statement the office at 345 Park Avenue will be closed on Tuesday, after a shooting in the building on Monday evening that left four dead, including a Blackstone executive.

The madman’s rampage reminds us  that evil  can strike the most secure-seeming  location, even in the best of times.

Four people were killed and a fifth was injured in the mass shooting at a Midtown Manhattan office building on Monday.

Nearly 24 hours after a deadly Midtown mass shooting that left four people dead, including an off-duty police officer, detectives from the NYPD Crime Scene Unit combed through the plaza outside 345 Park Ave.