How does the law tolerate execution of the innocent?

On Tuesday, Missouri executed a man whose DNA did not match the crime scene evidence

Photo by LOGAN WEAVER | @LGNWVR on Unsplash

On Tuesday, at 6:10pm, Marcellus Williams was pronounced dead. He was executed by lethal injection in Bonne Terre, Missouri, at the Department of Corrections.

Mr. Williams was convicted of murder in 2003 based on the testimony of two prisoners who claimed he confessed. DNA evidence later revealed his likely inn…