After the indictment of 36-year-old Christopher Clements for the kidnapping and murder of two young girls, we're learning more about how the case was cracked.
Based on reliable information, the location of Isabel Celis came from a tip by the FBI.
Tucson Police sent out a press release with the following information on the matter:
"In early 2017, local FBI agents were contacted about an individual by the name of Christopher Clements. They were advised that Clements possibly had information relating to the disappearance of Isabel Celis. The FBI immediately contacted the Tucson Police Department and assisted with the follow-up of that information. On March 3, 2017, after speaking with Clements, Tucson Police Investigators and FBI Agents located human remains in the area of North Trico Road and West Avra Valley Road, which is the same general area where Maribel Gonzales was located in 2014. The Tucson Police Homicide Unit was then assigned to recover the remains and to continue the investigation. Those remains were tested and positively identified as Isabel Celis. The manner of death was determined to be a homicide."
This is a developing story. Stay with KGUN 9 for the latest updates.