This Man Is Missing a Chunk of His Brain. The Missouri Supreme Court Says It's Okay to Execute Him.

Cecil Clayton, a mentally ill Missouri man facing execution on Tuesday, was denied a crucial avenue to clemency this weekend: The Missouri Supreme Court ruled that Clayton is competent to be executed. But he's missing one-fifth of his brain. Clayton, 74, was sentenced to death in 1997 for murdering a police officer. Twenty-five years before that, he suffered a horrific accident that caused the removal of significant parts of his brain, transforming his brain chemistry and personality. His lawye...