A Lufkin Police officer has been no-billed in the March shooting death of an aggravated assault suspect.Blake Witherspoon shot and killed Epthen Johnson, 40, of Lufkin on March 1 following a 911 call from a witness who saw Johnson attacking a man. He arrived to see Johnson crouched on top of the man, stabbing and cutting at his head and neck. Witherspoon commanded Johnson multiple times to show his hands, but Johnson did not acknowledge the officer’s presence and continued stabbing at the man.