Ten-year-old Anthony Chen and three members of his family were found bludgeoned to death in their Guilderland, New York home on October 8, 2014. Anthony’s seven-year-old brother Eddy and their parents, 39-year-old Jin Feng Chen and 38-year-old Hai Yan Li, were also killed; authorities described the attack as an act of extreme violence and said a hammer or similar blunt object was likely used. Jin Chen’s body was discovered downstairs; his wife and sons were found upstairs covered with blankets.

The discovery came when a coworker went to the family’s Western Avenue home after Jin Chen failed to show up for work at a local Chinese restaurant. Investigators reported no signs of forced entry and have not recovered the weapon. More than 600 leads have been pursued over the years, with inquiries that included possible links to organized crime and financial disputes, but no definitive motive, suspect, or arrest has been announced.

Anyone with information about the Chen family or the events leading up to October 8, 2014 is asked to come forward.