Four people were killed and a fifth was injured in a mass shooting at a Midtown Manhattan office building on Monday.One slain victim worked at Rudin Management -- which is located on the 33rd floor of 345 Park Avenue,

A New York police officer, a “beloved” security guard and a senior executive with investment firm Blackstone were among four people killed Monday when a lone gunman stormed a sprawling office tower in Midtown Manhattan and opened fire.

"We cannot properly express the grief we feel upon the sudden and tragic loss of Wesley," the LePatner family told Fortune, adding she was a "driven and extraordinarily talented professional and colleague.