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

The victims of the Manhattan office building shooting are identified as NYPD Officer Didarul Islam, Blackstone executive Wesley LePatner, Cornell grad Julia Hyman and security officer Aland Etienne.

Wesley LePatner, a top Blackstone executive and advocate for workplace diversity, was among four people killed in a mass shooting at the firm’s Park Avenue office.