PHILADELPHIA (AP) — A federal appeals court has granted another look at the evidence in the case of a man convicted of killing his daughter in what authorities alleged was an arson fire more than two decades ago in eastern Pennsylvania.

The 3rd U.S. Circuit Court of Appeals on Friday granted 76-year-old Han Tak Lee’s request for an independent examination of evidence from the July 1989 fire that killed 20-year-old Ji Yun Lee in Stroud Township.

Lee argues that advances in fire investigation show that the expert testimony used to convict him was unreliable. Some arson specialists have said that such evidence may have led to hundreds of wrongful convictions.

Defense attorney Peter Goldberger says he and his client are “delighted.” Monroe County District Attorney David Christine said an appeal is under consideration.

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