After examining evidence from the capital prosecution of Cameron Willingham (pictured), four national arson experts have concluded that the original investigation of Willingham's case was flawed and it is possible the fire was accidental. The independent investigation, reported by the Chicago Tribune, found that prosecutors and arson investigators used arson theories that have since been repudiated by scientific advances. Willingham was executed earlier this year in Texas despite his consistent claims of innocence. He was convicted of murdering his three children in a 1991 house fire.

Arson expert Gerald Hurst said, "There's nothing to suggest to any reasonable arson investigator that this was an arson fire. It was just a fire." Former Louisiana State University fire instructor Kendall Ryland added, "[It] made me sick to think this guy was executed based on this investigation.... They executed this guy and they've just got no idea - at least not scientifically - if he set the fire, or if the fire was even intentionally set."

Willingham was convicted of capital murder after arson investigators concluded that 20 indicators of arson led them to believe that an accelerent had been used to set three separate fires inside his home. Among the only other evidence presented by prosecutors during the the trial was testimony from jailhouse snitch Johnny E. Webb, a drug addict on psychiatric medication, who claimed Willingham had confessed to him in the county jail.

Some of the jurors who convicted Willingham were troubled when told of the new case review. Juror Dorinda Brokofsky asked, "Did anybody know about this prior to his execution? Now I will have to live with this for the rest of my life. Maybe this man was innocent." Prior to the execution, Willingham's defense attorneys presented expert testimony regarding the new arson investigation to the state's highest court, as well as to Texas Governor Rick Perry. No relief was granted and Willingham was executed on February 17, 2004. Coincidentally, less than a year after Willingham's execution, arson evidence presented by some of the same experts who had appealed for relief in Willingham's case helped free Ernest Willis from Texas's death row. The experts noted that the evidence in the Willingham case was nearly identical to the evidence used to exonerate Willis.