TOMPKINSVILLE, KY - An 81-year-old man accused in the ambush-style slaying of a retired southern Kentucky lawman has pleaded not guilty.
 
Charles Hammer is charged with murder in the shooting death of 82-year-old Herbert Proffitt, a former Tompkinsville police chief and Monroe County sheriff. Proffitt was gunned down in his driveway late last month.
 
Proffitt arrested Hammer a decade ago, and authorities are investigating whether a desire for revenge prompted the slaying.
 
Hammer was denied bond at his arraignment Tuesday. His next court appearance is scheduled for Sept. 25.