Tags: Criminal.
Christina Marie Riggs (September 2 1971 – May 2 2000) was a murderer executed in Arkansas by lethal injection. She was convicted of the November 4 1997 murder of her two young children Justin Dalton Thomas and Shelby Alexis Riggs. The children were killed in their beds at the family’s Sherwood Arkansas home. The murder plan involved giving the children undiluted potassium chloride just after giving them amitriptyline to sedate them.