The State of Texas violated international law by executing a Mexican national without granting him consular access. This was in violation of Article 36 of the Vienna Convention on Consular Relations.
But a deeper problem exists. Governments should not be in the business of killing people. Capital punishment is a tool of tyrants, and a civilized democracy such as ours should not execute people, no matter how heinous their alleged crimes were. Testimonies can be bought. Evidence can be falsified. Confessions can be obtained under torture.
I am of the opinion that Mr. Leal Garcia was guilty, but as my non-existent regular readers know, my opinion is worth jack sh*t. How will anyone know for sure now that the accused is dead?
I can understand your feelings of anger if your 16 year-old daughter is raped and killed by a dirtbag, and I can't blame you for wanting the alleged perpetrator hung, drawn, and quartered. But what if you find yourself wrongfully accused of a crime you did not commit because you happened to be at the wrong place at the wrong time? How would you like to have the tables turned? Wouldn't you want the death penalty to be outlawed then?
Let's imagine a fictitious scenario for a moment. What if a religious fundamentalist is elected President and orders Homeland Security to put together a blacklist of anyone who has accessed an atheist blog, let's say for example, http://guntotingatheist.blogspot.com, and you end up on that blacklist for reading this very post. And what if the fundamentalist tyrant then orders that all the people on that blacklist get arrested and executed for 'conspiracy to commit blasphemy' (or some stupid thing of that nature)? How would you like it if the death penalty was legal then? The death penalty is something people like Adolf Hitler, Josef Stalin and Saddam Hussein used all the time to eliminate their political enemies, because it worked. Let us not make life easier for future dictators by handing them this inhumane tool on a silver platter.
It is better to let a hundred vicious serial serial killers spend the rest of their life in prison than risk wrongfully executing just one innocent person. The death penalty only sounds good if you are on the good side of it.
The death penalty is uncivilized and should be abolished.
Use of lethal force in self-defense -or in the defense of another- against a direct threat is a completely different story.