NEW : Mother , sister disagree with finding , demand more investigation . The coroner ruled the death was a suicide by hanging . Taylor Armstrong agrees her father killed himself , a police report says . He appeared with his wife on Bravo 's `` Real Housewives of Beverly Hills . '' The ` ` Real Housewives of Beverly Hills '' cast member was found dead last month .
NEW : Mother , sister disagree with finding , demand more investigation . The coroner ruled the death was a suicide by hanging . Taylor Armstrong agrees her father killed himself , a police report says . The ` ` Real Housewives of Beverly Hills '' cast member was found dead last month .