A man charged with killing a Muskingum county sheriff's deputy is to go on trial October 21st. 27-year-old Henry Hager of Grove City has pleaded innocent to aggravated murder in the shooting death of deputy Robert Tanner Junior. The 39-year-old Tanner was killed during a traffic stop on January eighth. Muskingum county prosecutor Michael Haddox says he's seeking the death penalty. Hager is being held without bond at the Franklin county jail in Columbus.