Incident began when police responded to complaints of open-air drug sales in area . about one people had been arrested when Viola Young arrived asking questions , police say . Video shows Viola Young pull arm away from officer , walk off before he Tases her in the back . Police : Officer Michael DeLeo on paid leave pending outcome of Young probe .
Incident began when police responded to complaints of open-air drug sales in area . 3 people had been arrested when Viola Young arrived asking questions , police say . Video shows Young pull arm away from officer , walk off before he Tases her in the back . Police : Officer Terry Mahan on paid leave pending outcome of Internal Affairs probe .