Michelle Miriam Davis , Sunday , faces first- and second-degree murder charges . Police say she and her mother , 94-year-old Margaret Ellen Wells , argued before Davis fatally stabbed her . Wells was found with stab wounds to her upper body , authorities say .
Michelle Miriam Davis , 60 , faces first- and second-degree murder charges . Police say she and her mother , 94-year-old Margaret Ellen Wells , argued before Davis fatally stabbed her . Wells was found with stab wounds to her upper body , authorities say .