Overview
- The incident occurred in Syosset, New York, just days after the funeral of DeLucia's 95-year-old mother.
- DeLucia, 59, used a shotgun to kill his brother, two sisters, and a niece before taking his own life.
- Family members had assured DeLucia he would be provided for, but he feared displacement from the family home.
- Neighbors and police noted DeLucia had past mental health issues and had expressed distress over the home sale.
- Authorities are urging the public to report signs of mental distress to potentially prevent similar tragedies.