At a press conference Thursday afternoon, Charles Manwill choked back tears as he thanked the Boise community.
"My heart goes out to the community for all the help and support we've received to find my lost son," he said, surrounded by family members.
This is the sixth day of the search for 8-year-old Robert Manwill.
While police gave citizen volunteers the day off from the search, more than 100 Idaho Army National Guard members have volunteered to comb the outlying areas south of the airport, said Lt. Col. Tim Marsano.
"It's part of a broad swath of real estate," Marsano said. "We know that area, we drive that road every day."