Texans wonder if they executed an innocent man

(CNN) -- A Texas state board is set Friday to revisit questions surrounding a controversial 2004 execution, with supporters of the man's family warning the panel is trying to bury its own critical review of the case.

Cameron Todd Willingham was executed in 2004 for a fire that killed his three daughters. Prosecutors argued that Willingham deliberately set the 1991 blaze -- but three reviews of the evidence by outside experts have found the fire should not have been ruled arson.

The last of those reports was ordered by the Texas Forensic Sciences Commission, which has been looking into Willingham's execution since 2008. But a September 2009 shake-up by Texas Gov. Rick Perry has kept that panel from reviewing the report, and the commission's new chairman has ordered a review of its operating rules. Critics say that may kill the probe.

"They are attempting permanently to keep the investigation from continuing and moving on, and I do believe it's because they don't like the direction the evidence is leading," Willingham's cousin, Pat Cox, said Thursday. Read more at www.cnn.com