Overview

• 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.