This is the moment terrified Blackstone staff desperately scrambled to build make-shift barricades as their Manhattan offices were attacked by a vicious gunman who killed four people during his rampage.
Workers in officewear stacked piles of sofas, computers and chairs on top of each other as Nevada man Shane Tamura tore through the 345 Park Avenue skyscraper on Monday night with an M4-style rifle, killing several people.
The pile of furniture was stacked as high as the ceiling of the 32nd floor of the building, which is also home to the National Football League and auditor KPMG. The area hosts several five-star business hotels, as well as the United Nations' headquarters.
According to local media, panicking workers even started pulling wood desks apart to add more bulk to the barrier.
Tamura, the gunman, was seen carrying an M4 assault rifle killed four people, including a police officer, when he opened fire in broad daylight in the heart of New York City, before taking his own life.
