Wesley LePatner, 43, was among the four people killed by a gunman who stormed the Park Avenue building where she worked on Monday.

The executive was shot and killed in the lobby of the ritzy Park Avenue office tower when gunman Shane Tamura opened fire.

Blackstone Inc.’s Wesley LePatner, a top executive in the firm’s $325 billion real estate business, was killed Monday when a gunman opened fire at the company’s Manhattan headquarters. She was 43.