In Arkansas, further evidence has emerged that a condemned prisoner who was put to death four years ago did not commit the 1993 murder for which he was convicted. Ledell Lee professed his innocence until his execution by lethal injection in April 2017. The ACLU and the Innocence Project said this week that genetic testing found DNA from an unknown person — rather than Lee — on a club used in the murder and on a bloody shirt that was found wrapped around the weapon.