AUSTIN, Texas (AP) - A college student who claimed he stabbed and slashed his piano professor more than 200 times because he thought she was a robot intent on killing him has been found not guilty of murder by reason of insanity. Jurors reached the verdict Thursday in the case of Jackson Ngai, a former student at the University of Texas, who could be committed to mental institutions indefinitely. "If we can keep him locked up in a mental hospital for the rest of his life, that will be justice," prosecutor Corby Holcomb said. Ngai's attorney has said Ngai believed...