TUCSON - Tucson Police returned to the Celis home Wednesday in their investigation into the disappearance of 6-year-old Isabel.

On day 12 of the search for the little girl, Tucson Police detectives accompanied members of the Celis family into the home one at a time for questioning. Police started with Isabel's father Sergio Celis, who was in the home for about an hour. Her mother was next and stayed in the home for 45 minutes, and finally a young boy, believed to be Isabel's brother, was brought into the home.