The grandson of "Hillside Strangler" Angelo Buono Jr. shot and wounded his grandmother before killing himself, police said Friday. Christopher Buono, 20, was found dead Thursday inside an Orange County furniture store where his grandmother, Mary Castillo, worked, said Brea police Sgt. Darrin Devereux. Buono sustained gunshot wounds to his upper body, Devereux said. Castillo, 67, had gunshot wounds to her head and chest and was taken to a hospital, where she was in stable condition Friday, Devereux said. The motive was under investigation and an autopsy was pending. Grandmother and grandson lived together in Fullerton. Castillo's telephone number was...