A New Hearing Date Is Set For A Johnson City Teen Accused Of Killing His Mother And Sexually Abusing Her Dead Body. 18 Year Old Codey Miller Is Charged With First Degree Murder Felony Murder, And Abuse Of A Corpse. He’s Accused Of Killing His Mother, Sherry Cooper, In May Of Last Year. Miller Will Appear In Juvenile Court On March 11th. Meanwhile, 37 Year Old Christopher Johnson Of Memphis Faces The Same Charges. He’s Scheduled To Be Back In Washington County Criminal Court On April 20th.