Indiana State Trooper unveils Sgt. Marvin Walls memorial sign

Pictured: an Indiana State Trooper unveils a sign Lewis & Clark Parkway near Interstate 65 in Clarksville, Ind., honoring fallen Indiana State Trooper 1st Sgt. Marvin Walls, who lost his life on March 18, 1957, after 20 years of service when he was shot by a bank robbery suspect. (WDRB image)