Sam Millsap, a former Texas district attorney from San Antonio, recently called for DNA testing in the case of Hank Skinner, who is scheduled for execution on March 24. Texas has so far refused to conduct additional DNA tests on critical evidence from the crime scene that could support Skinner's claim of innocence. For the last decade, the state has blocked DNA testing of key pieces of evidence, including a knife that might be the murder weapon and a man's windbreaker found next to the victim's body, which had blood, sweat and hair on it. Skinner's trial attorney failed to investigate another potential suspect, a man who was a relative of the victim and wore a windbreaker like the one found at the murder scene. Millsap stated, "Since 1973, 139 people in 26 states have been released from death row based on evidence of their innocence. Eleven of them were in Texas. Many of these people were freed because of DNA evidence. But DNA testing works only if we use it … It is cases like Skinner's that ended my lifelong support for the death penalty. Any system driven by the decisions of human beings will produce mistakes." Read full text below.