Tuesday marks day 12 of the search for missing Isabel Mercedes Celis. She was last seen the night of Friday, April 20th, when she went to bed at her home on East 12th Street near Broadway and Craycroft.

Isabel's mother, father and brother were brought to the family's home Tuesday, in separate trips.

Police tell us the individual interviews are common practice in their ongoing investigation of Isabel's disappearance.

Detectives say the family continues to cooperate with the investigation.

So far, Tucson Police have received 500 tips in the case.

Anyone with information is urged to call 9-1-1 or 8-8 Crime.