John David Mastroianni - Of Greenlawn, NY, passed away June 21, 2016. Loving father of Cassie and Anthony. Survived by Joanne Mastroianni. Son of the late James and Sandra. Dear brother of Lori, Jimmy, and Donald. Loved by many nieces, nephews, cousins, aunts and uncles. We will remember John on July 7, 2016, 6-9 PM, at Nolan & Taylor-Howe Funeral Home, 5 Laurel Avenue, Northport.