A grandmother and a four - year - old boy have been brutally stabbed to death . The grandfather was found bound and strangled in the living room . The grandfather was found in the backyard and the boy in a bedroom . A 45-year - old Chinese woman has been stabbed . The woman had arrived at the scene earlier and an alteration occurred .
A grandmother and a four-year-old boy have been found stabbed to death . The grandfather was found bound and gagged in the living room . The grandmother was found in the backyard and the boy in a bedroom . A 45-year-old Chinese woman has been arrested . The woman had arrived at the home earlier and an alteration occurred .