A New York judge has overturned the arson and murder convictions of three men in a 1980 fire that killed a mother and her five children.

Brooklyn District Attorney Ken Thompson asked the judge to clear the men. He says they were convicted based on outdated fire science and a lying witness.

Two of the men attended Wednesday's hearing in Brooklyn state Supreme Court. The third died in prison; his widow was present in court.

William Vasquez, Amaury Villalobos and Raymond Mora were convicted of arson and six murders after a 1981 trial. Vasquez and Villalobos were paroled in 2012 and Mora died in 1989.