Can anyone help with this movie's name?

I'm trying to remember the name of a movie.

The main character is a teacher who in his spare time protests the death penalty. His friend and fellow protester is then found murdered and he is found guilty of the crime and given the death penalty. While on death row he has a series of interviews with a reporter who he requested to write a story on him. (Don't particularly want to write the ending of the movie and the twist so as not to spoil anything if someone reads this later on)