from his wounds, was shown a police photo lineup with ruben cantu's picture. >> moreno identified reuben cantu as the assailant. it was taken and accepted by the district attorney's office. >> district attorney, sam millsap, the youngest d.a. in the country, would now decide whether to try 17-year-old ruben c cantu as an adult, making hill eligible for the death zenpenal. >> we had very, very young people committing very adult crimes, very brutal crimes. i was moved by that. the only thing that prosecutor could do in that sways, because of the brutality of the crime, was prosecute it as a capital murder. i had a perfect record in death penalty cases. >> reuben cantu's trial began on july 22nd, 1985. the prosecution's star witness described how he shot pedro in the head and turned rifle on him and riddled his body with bullets. >> mr. moreno was a good witness, very sympathetic. he was asked to raise his shirt and show the scars and the wounds that he had received. when the jury saw the scars, they made a pretty big impression. they asked, are you able to identify in court today the man who sho

the only decision that they could make under the circumstances. >> reuben's accomplice, a man named david garza, received 20 years. cantuto solitary confinement at the huntsville state penitentiary, 230 miles east of san antonio. from his cell, reuben wrote a letter addressed to the citizens of san antonio. >> this was a letter he wrote not long after he was convicted. it says, my name is reuben m. cantu. i am only 18 years old. i have been framed in a capital murder case. so i'm going to have to spend the rest of my life in prison or die by so-called lethal injection. it was an angry letter. he is outraged about what happened to him. it was some very, very four pull charges in it. >> for sam millsap, the letter was just another convict claiming innocence. as the years went by, millsap began to have doubts. >> it never occurred to me when i was 35 years old that i was the smartest guy in the room, that the criminal justice system could get it wrong in these cases. if i could do it over again, i if ra is changing your view of everyday things orencia may help. orencia works differently by targeting a source of ra early in