Gabi Petito’s search for her fiancé Brian Laundry was used in a one-night search

According to local reports, authorities have used infrared technology in the search for Gibi Petito’s fiancé Brian Laundrin. Law enforcement sources used a heat imager in the hope of finding the 23-year-old who is interested in Petito, citing sources, according to CBS affiliate WTSP.

The search focused on Carlton Reserve, about 25,000 acres[25,000 ha]in Sarasota County, Florida. The county sheriff’s office said Wednesday that part of a wider search effort responded to the reserve where Laurry went last week to search for bodies of water.

Laundrie has been missing for more than a week after his family said they had seen him for the last time. Law enforcement Wanted Landry’s home in Florida, where he spent eight hours Monday, interrogating his parents and gathering evidence that Petito was convicted of murder.

The search tool used this week includes airplanes, drones, ETVs and the Sarasota mobile command line, CBS affiliate WINK reported.

A body in Wyoming confirmed Tuesday that Petto’s body had been found in a camp near Great Teton National Park and that the first road to death had been set for murder.

Authorities said Petito was last seen with her family in late August, when she was in the park. Landerry reportedly disappeared 11/10 days after returning home from a cross-country trip.

Sophie Reddon contributed to this report.

The “48 Hours” will be followed by the disappearance of Gabi Petito and the hunt for Brian Landry on Saturday 10/9c on CBS and Paramount +.