In October, Ghazal Mansury pleaded not guilty to killing Mehria Mansury, who she shared a home with.
When the victim went missing Sept. 23, relatives immediately asked detectives to look into the possible involvement of her daughter, who has a criminal history related to thefts, said San Diego police Lt. Jorge Duran last year.
The mother's body was later found lying face-down underneath a tree in an open area on the grounds of Barona Indian Reservation, Duran said. Hours later, police took her daughter into custody for questioning.
—City News Service contributed to this report.