The teenage daughter of Sonia Riang is accused of killing her mother on Christmas Day. Sonia Riang was physically disabled and was stabbed to death. Police said the victim, a 45-year-old woman bound to a wheelchair, was killed on Christmas at the Washington Place Apartments. Sources close to the investigation said the daughter has a history of domestic violence and had stabbed her 7-year-old brother in the past. The mother was stabbed multiple times. She was a mother of two children, ages 7 and 17. Sources said the victim’s cousin found the body and called police.Police found the teenage suspect at a 7-Eleven in Fraser. Her brothers say she talked about having a dark angel, hearing voices, and claim she talked about someone killing their mother on Christmas Day.