James Riva II, 67, who has been behind bars for more than four decades, was found guilty of second-degree murder in 1981. He was sentenced to life in prison with the possibility of parole.

James Riva II killed his grandmother Carmen Lopez after she asked him to do her laundry A Massachusetts man has been denied parole for the sixth time following the 1980 slaying of his grandmother ...

James Riva II killed his grandmother Carmen Lopez after she asked him to do her laundry AP Photo/Dick Fallon; Ted Fitzgerald/MediaNews Group/Boston Herald via Getty A Massachusetts man has been ...

NATICK — The state Parole Board has for the fifth time denied release for James Riva, of Marshfield, dubbed the "Vampire Killer," after he stabbed and shot his grandmother in 1980 and tried to ...

James Riva II, 67, was found guilty in 1981 of murdering his grandmother Carmen Lopez in her Marshfield, Mass., home on April 10, 1980, according to a parole board statement. He was sentenced to ...

A Massachusetts man has been denied parole for the sixth time following the 1980 slaying of his grandmother, whose blood he drank after killing her. James Riva II, 67, was found guilty in 1981 of ...