SAN QUENTIN STATE PRISON -- A man newly arrived at San Quentin State Prison after being convicted of murder and drunken driving in the death of a 9-year-old Novato girl was fatally stabbed by another inmate, authorities said Tuesday. Edward John Schaefer, 44, of Novato was stabbed in the chest and neck at about 10:35 a.m. Monday in the prison's reception center yard and died that night, said Lt. Sam Robinson, prison spokesman. The suspect is Frank Anthony Souza, 31, a convicted murderer from San Jose, Robinson said. Souza had fashioned a homemade weapon, authorities said. Schaefer was killed just...