DALLAS (AP) — The sister of a missing 3-year-old Texas girl will remain in foster care for at least three more weeks. A Dallas County judge postponed a Monday custody hearing until Nov. 13 for the 4-year-old sister of Sherin Mathews to allow their father, Wesley Mathews, to hire an attorney. Police said Monday that they believe the body of a young child found about a half-mile from the family's home in the Dallas suburb of Richardson is Sherin's.