Many workers were returning to the office a week after a gunman stormed the building that houses Blackstone’s headquarters ...

Workers returned to 345 Park Ave., on Monday​ under the watchful eyes of NYPD officers and a surplus of security after the ...

Blackstone Inc.’s Steve Schwarzman walked into the company’s headquarters at 345 Park Ave., through the lobby that a week ago had been the scene of horror and chaos when a gunman killed one of its ...