TUCSON (KGUN9-TV) - Tucson Police detectives are ahead of schedule in their rejuvenated investigation into the disappearance of Isabel Celis.
After two days of interviews throughout the Celis neighborhood near Broadway and Craycroft, a few officers will conduct final interviews Friday including at an apartment complex.
A TPD Sgt. on scene tells 9OYS the police command post will not return to the neighborhood Friday.
Since police announced this new phase of the investigation, Tucson Police Asst. Chief Brett Klein said "a number of new leads" have come in through 88-Crime.
"We're trying to find anybody and everybody who might have information," Klein said. "There are no constraints in terms of the lengths that we will go to solve this crime."
The mystery of Isa's disappearance has captivated the country since her parents Sergio and Becky Celis first reported their daughter missing on April 21, 2012.
New detectives assigned to the case have gone door to door for the past two days, talking to neighbors and looking for any piece of information they missed the first time.
"We revisit a number of cases that's why we have things like a Cold Case unit," Klein said.
But police say this case has never gone cold.
"Why couldn't they have done this a long time if they were feeling they wanted to bring new people on, new eyes, fresh eyes," Sergio Celis said.
Whether or not the fresh eyes uncover new clue, all the parents want is for their daughter to come home.
"We appreciate the new efforts with police, but we've always felt its going to be someone else to be the guardian angel," Sergio Celis said.
If you know anything that can help bring Isa home, please call 8-8 crime.