mr. dunlap should be allowed to come out of the penitentiary only in a pine box. >> he took lives that he was not entitled to take. not for self-defense. not for self-preservation. nothing. this man is a mass murderer. and he deserves death. >> for 20 years as dunlap appealed his death sentence, violence continued to strike colorado. >> masked gunman walked into columbine high school. >> shooting at century theaters. they're saying somebody is shooting in the auditorium. >> and cries for vengeance increased. >> too many criminals. time all of them die. kill all of them, colorado. that will take care of all this crap. >> in 2013, nathan dunlap's execution ordered landed on the desk of governor john hickenlooper and in an odd twist of fate, the governor's own political fortunes would come to rest on his decision. >> we're going to have an election in 2014 where one of the questions is, do we want to kill this one person? >> the case sparked a raging debate over capital punishment and posed the question, what should be done with society's most heinous criminals? >> the death penalty encompas