Bloodhounds hunting fugitive dubbed "Devil in the Ozarks" foiled by heavy rains after prison escape

A bloodhound picked up the scent shortly after the "Devil in the Ozarks" escaped from a lockup in northern Arkansas. The hound didn't have to go far to begin the hunt - it lives at the prison as part of a specialized unit that uses man's best friend to help track fugitives.

Although the scent of convicted killer Grant Hardin was lost because of heavy rain, experts say that even days after Sunday's escape, the animal's highly developed sense of smell can still pick up a fresh trail.

Bloodhounds are known for being tenacious trackers, said Brian Tierney, president of the National Police Bloodhound Association. They're playing a key role in the search for Hardin, now in its sixth day.