Landfill Searched for Missing Tucson Girl Tucson cops searched a landfill without success today after an FBI search dog came upon a "hit" in the home of missing 6-year-old girl Isabel Mercedes Celis. Having police turn to a landfill for evidence of the girl was a grim turn in the investigation. Searchers combed through garbage at the landfill and continued canvassing a 3-mile area around the girl's home to try and solve what they say has become a likely abduction case. Police have evacuated the Celis family from their home today following the dog search, which involved one cadaver dog and one scent-following dog, Villasenor said. They are treating the house as a crime scene. Police have also talked to more than 15 registered sex offenders who live within a three mile radius of the family's home, including at least one who lives in the immediate vicinity. Villasenor would not comment on leads or tips garnered during hte investigation. Police have not ruled out the parents of the missing child as suspects.