The victims were shot inside a home on Washington Place just before 11 p.m.
They were taken to Nassau University Medical Center, where one of the victims was pronounced dead.
Three suspects, described as teens wearing facemasks and carrying handguns, fled the scene. At least one was wearing a black T-shirt.
The motive was not immediately known, although it appears the house was targeted by the suspects.
Residents say the neighborhood has been targeted by burglars in recent days, and there was reportedly a robbery on the block just last week.