Travis Decker remained at large and officials had shut down a large swath of a national forest to search for him.

Travis Decker's search history contained a lot of questions about moving to Canada just before his daughters went missing ... according to the U.S. Marshals Service. In a new affidavit filed earlier this week,

Local and federal law enforcement have been searching for the 32-year-old father from the air and on the ground after the bodies of his daughters were found.