COOKEVILLE, Tenn.—A Tennessee man has pleaded not guilty to killing the great-niece of late country music singer Johnny Cash.

The Tennessean ( reports that 27-year-old Wayne Masciarella entered the plea Wednesday during a brief court appearance in Putnam County.

Police say they think Masciarella stabbed 23-year-old Courtney Cash to death after getting into an argument with her and her boyfriend.

Cash's body was found March 19 inside a wooden box at her home in Baxter. Her boyfriend, William Austin Johnson, also suffered stab wounds.

A motive has not been released, but Putnam County Sheriff David Andrews has indicated the stabbings were likely connected to drugs.


Information from: The Tennessean,