In a lengthy statement shared by the 32BJ Service Employees International Union on Thursday, 65-year-old Nelovic described coming face-to-face with Shane Devon Tamura, the 27-year-old gunman who authorities say entered the office tower shortly before 6:30 p.

Officials said the gunman fatally shot himself after his attack, which set off a chaotic scene that rippled out into the heart of Manhattan during rush hour.

Investigators are combing through evidence in the wake of New York City’s deadliest mass shooting since 2000, trying to figure out more about the gunman who unleashed an assault-style rifle in Midtown,