Here are some books or films concerning the death penalty.
Dead man walking, Tim Robbins with Sean Penn and Susan Sarandon 1996
Green mile, Frank Darabont with Tom Hanks 1998 adapted from a book by Stephen King
[youtube]http://youtu.be/ctRK-4Vt7dA[/youtube]

Twelve angy men, Sidney Lumet 1957
[youtube]http://youtu.be/dzhH2hlNSfs[/youtube]

A beautiful French documentary which won the Academy Award for Best Documentary Feature, directed by Jean Xavier de Lestrade.English title Murder on a Sunday morning.