Authorities identify all four of those killed in NYC mass shooting

Authorities have now identified all four killed in Monday night's mass shooting inside a Midtown Manhattan skyscraper.

The two female victims are Blackstone executive Wesley LePatner, 43, and Julia Hyman, a 27-year-old Cornell graduate who worked for building owner Rudin Management.

The two others fatally shot at the building, at 345 Park Ave., were Aland Etienne, 46, an unarmed security guard working for McLane Security Inc., and 36-year-old Didarul Islam, an off-duty New York Police Department officer who was working building security. 

He was an immigrant from Bangladesh who had spent four years with the NYPD and left behind his pregnant wife and two young sons

NFL employee Craig Clementi was also injured in the incident but is in a stable condition.

The shooter, Shane Tamura, 27, killed himself after killing the victims, according to authorities.