Lawyer and best-selling novelist Scott Turow's new book is non-fiction: Ultimate Punishment: A Lawyer's Reflection on Dealing with the Death Penalty. Turow was appointed by former Illinois Governor George Ryan's commission to review the death penalty after 13 inmates on death-row were found to have been wrongfully convicted and were exonerated. Turow says serving on the commission changed his own view of the death penalty. Gov. Ryan ended up commuting the sentences of everyone on Illinois' death row. Turow speaks with NPR's Scott Simon.