Didarul Islam, 33, was working security at the midtown office building when he was shot dead by 27-year-old Shane Tamura.

Heroic Bangladeshi immigrant NYPD officer killed in Manhattan mass shooting, praised for saving lives and ultimate sacrifice.

Officer Didarul Islam, 36, was shot in the back and killed by a gunman seen carrying an M4 assault rifle near a midtown Manhattan office building that houses the NFL on Monday.