Some caricatures suggest that a conservative would be reluctant to represent a convicted murderer. That may be true, if the client is clearly guilty. Although every defendant deserves a lawyer, I've handled too many horrible criminal cases to have any interest in representing violent criminals. But John Thompson was innocent. And critical to supporting the death penalty is ensuring that we vigorously protect the innocent. DNA has enabled many guilty persons to be convicted, and it has proven the innocence of many others.