Webisabella guzman stabbed her mother 79 times in 2013 and was found not guilty by reason of insanity. She claims to be restored to health and apologetic, but still. Webisabella guzman, who was found not guilty by reason of insanity for killing her mother in 2013, will be allowed to leave the state hospital for group therapy and. Look below to see a 7news report, guzman's booking photo and.