Antonin Scalia, in 2006, declared that, in the modern judicial system, there has not been "a single case--not one--in which it is clear that a person was executed for a crime he did not commit. If such an event had occurred in recent years, we would not have to hunt for it; the innocent's name would be shouted from the rooftops."

Justice Scalia it is time then for you sir to buy a tall ladder, a bull horn and to learn the name Cameron Todd Willingham. 

Mr. Willingham was convicted of arson and murder in a case where one of the top arson scientists concluded before Willingham's execution that there was zero evidence of arson and that there was no scientific basis for the original arson investigator's findings.  In the case of Mr. Willingham, the state of Texas carried out the execution of a legally and factually innocent person.

Here a link to an in depth article on Mr. Willingham's story in the New Yorker:  http://www.newyorker.com/reporting/2009/09/07/090907fa_fact_grann?currentPage=all

I've long been conflicted when it comes to the death penalty and even after learning of Mr. Willingham's horrific story I can't honestly say that I'm without conflicting thoughts today; but I can say that I agree with Justice Scalia and that we should all learn the name Cameron Todd Willingham and shout his name.  Not because he is likely to have been the 1st innocent person executed in this country; but because it can be proven and that he should be part of the dialog going forward.