A 60-year-old Maryland woman stabbed her elderly mother to death at the end of an argument Saturday morning , authorities say . Prince George 's County Police say Michelle Miriam Davis faces murder charges for killing 94-year-old Margaret Ellen Wells in the home they shared in Chillum , six miles north of Washington , D.C. Officers responded at the request of emergency medical personnel at about 11:30 a.m. Saturday to perform a wellness check at the home on Knollbrook Drive . Scroll down for video . Stabbing death : Michelle Miriam Davis , 60 , faces first- and second-degree murder charges in connection with the stabbing death of her 94-year-old mother that police say occurred after they 'd had an argument . In the home , police found Wells suffering from apparent stab wounds to her upper body . Wells was pronounced dead on the scene , police said . Investigators concluded Wells and Davis had an argument before the stabbing . Davis was found at the home when officers arrived and faces charges of first- and second-degree murder , police said . Investigation : Officers believe there was an argument between Davis and Wells that led to the fatal stabbing . Crime scene : Officers found Wells suffering from what appeared to be stab wounds to the upper body and encountered Davis still in the home . Peaceful surroundings : Neighbor Tamara Patrick told WJLA that she 'd never seen the family fighting or arguing . 'We 've never seen any fighting , any arguments , anything like that . It 's usually peaceful around here , ' neighbor Tamara Patrick told WJLA . No further information about the circumstances surrounding Wells 's death was immediately available from police on Sunday .
Michelle Miriam Davis , 60 , faces murder and second - degree murder charges . Police say she and her mother , 94-year - old Margaret Ellen Wells , died before having fatally stabbed her . she was found with stab wounds to her upper torso , authorities say .