The hospital homicides murder case : a Gillian Hazeltine courtroom mystery

It's a case of guilt at first sight when a young surgeon skips out of town to marry a key witness just before his wealthy aunt is found poisoned and the only other witness discovered with his throat cut. That 1930s master of legal-legerdemain, Gillian Hazeltine, thinks different, but with the evidence for guilt mounting, can he prove the young medico's innocence in a court of law?