SANTA CLARA, Calif. -- A 15-year-old boy allegedly killed his father then set their home on fire because he was afraid his father would find out he was failing some classes, prosecutors said. Ryan Watts was charged Friday with murdering his father, 50-year-old John E. Bruner, who was initially believed to have died in the fire earlier this week. He was charged as an adult. Watts was arrested Wednesday after an autopsy determined that Bruner died from multiple gunshot wounds and not from the fire, Santa Clara police said. According to court documents, Watts told police he took a .45-caliber...