Long Island Family Murder-Suicide Leaves Five Dead

Authorities reveal missed warning signs and mental health struggles of the shooter, sparking calls for community vigilance.

Joseph DeLucia Jr. killed four family members before taking his own life over a dispute about selling their late mother's home.
Neighbors reported DeLucia's distress and threats, but no one alerted the police before the tragedy.
Authorities suggest the murders could have been prevented with earlier intervention and use of 'red flag' laws.
Victims included DeLucia's siblings and niece, who had gathered to discuss the home's sale.
The incident highlights the importance of community awareness and reporting potential threats.