Bloodhounds track escaped killer Grant Hardin amid heavy rain, complicating scent trail.

Bloodhounds are crucial in the manhunt for Grant Hardin, an escaped prisoner from Arkansas known as the "Devil in the Ozarks." Despite heavy rain complicating the scent trail, the dogs' strong sense of smell allows them to continue tracking Hardin, who escaped while serving a 30-year sentence for murder. Bloodhounds are also used to find missing individuals, including children and those with special needs. Authorities are searching the area around the prison where Hardin escaped and have not ruled out the possibility that he remains nearby.