Doesn't do him much good to be exonerated after execution, but it does teach us something about the legal process, and death penalty.
Carlos DeLuna looked a lot like the real killer.
From NY Times: grossly inadequate police work...unreliable evidence, like witnesses’ patently unfair identification of Mr. DeLuna as he was handcuffed in a police car; repeated prosecutorial misconduct... failure to turn over exonerating evidence... incompetent counsel...
Not only was injustice done by killing a man for the crime that another committed, and doing so with shoddy evidence and trial, but injustice was done to the real killer's subsequent victims. salon.com As DeLuna languished on death row, Hernandez managed to get arrested nine times, once for killing a woman and another time for stabbing a Hispanic woman nearly to death
Lessons learned? I guess with such a large number of executions in Texas, at least the percent wrongly executed is small? Is one too many? Is (or two) the tip of an iceberg?
"Sorry!" "OhOh!" "Mistakes were made!" No words can undo tragedies ending these men's lives. It is time to stop executions. No one benefits and everyone loses when human beings put another to death without giving them good legal council and a fair and just judicial system. The judge, jury, and lawyers, pay heed. State supported murder is murder.
Executed despite serious doubts about their guilt
Cameron Todd Willingham, Cameron Todd Willingham: Wrongfully Convicted and Executed in Texas
Carlos DeLuna, A Routine Execution in Texas
"make up just a handful of people that have been executed despite serious doubts about their guilt, which raises the question: How many more people will be strapped to a gurney and injected with poison before the death penalty is abandoned?"
It's a good argument against the death penalty.