Sean Casey of the Discovery Channel show Storm Chasers was in Broken Arrow Sunday signing autographs and talking with fans.
Casey brought along his armored truck -- which he invented to capture unique video right from the heart of a tornado.
"We took a Dodge 3500 to build this," Casey said. "We tore it down and then added about 10,000 pounds of armor. We have a turret on top that the IMAX camera lives in when we're filming."
His second armored vehicle was built with the help of welding students in Lawton.