Inside America's cold case revolution: new super effective DNA-matching technique prompts privacy concerns Investigators are using whole-genome sequencing to search popular ancestry sites with great success, but critics have warned it is unethical 10 May 2021 • 6:00am Inmates at San Quentin State Prison in San Quentin, California. The new technique has helped overturn wrongful convictions and solve cold cases Credit: Eric Risberg /AP Convicted killer Ledell Lee protested his innocence up until his death in 2017 by lethal injection at an Arkansas county prison. Lee was accused of strangling and fatally bludgeoning a 26-year-old woman in 1993, but his prints were never found on the murder weapon and testimony putting him at the scene was later discovered to have been flawed.