KENNEWICK - Robert Bruce McCorkindale, 24, of Grandview was formally charged with a count of first-degree murder this past Friday in Benton County Superior Court. McCorkindale is suspected in the death of Preston Yahne, 22, of Prosser, who was discovered in the trunk of his own burnt out car on June 18. Police say McCorkindale killed Yahne in a dispute over a drug deal. McCorkindale is being held on $250,000 bail at the Benton County Jail. Also arrested in the case was Laura Bancroft, 19, of Grandview. She is detained on a $500,000 bail in the Yakima County Jail and is still awaiting charges.