Caves, barns, abandoned sheds: How the landscape of northern Arkansas might help an escaped convict

As the search for escaped prisoner Grant Hardin enters a fifth day, authorities pursuing the convicted murderer and rapist in northern Arkansas face various challenges from the landscape that could give Hardin an advantage in eluding capture.

​ As the search for escaped prisoner Grant Hardin enters a fifth day, authorities pursuing the convicted murderer and rapist in northern Arkansas face various challenges from the landscape that could give Hardin an advantage in eluding capture. Read More Breaking News, Latest News and Videos | CNN