but in appeal after appeal, ruben's case was denied in both texas and federal courts. >> do you feel like anyone is taking your issue seriously? absolutely not. i would get more review on a car theft case than i would on a capital murder case in texas. >> ruben's lawyer felt the case against him was weak because the only evidence was juan moreno's testimony. >> and that was it. there was no other evidence in the case. no circumstantial evidence, no firearm, no nothing. that was the entirety of the state's case on a 17-year-old boy. >> lack of evidence was not sufficient grounds to win an appeal. >> on appeal, guilt or innocence is never the issue. what our constitution promises every criminal defendant is a fair trial. because the trial was so clean, there was no basis, no error that had been committed during