Sunday Oklahoman:

Death sentence in jeopardy in scandalous 2001 Oklahoma City murder case

A federal appeals court has ruled 2-1 in favor of a notorious Oklahoma City murderer on his latest legal challenge to his death sentence.

James Dwight Pavatt, 63, is on death row for the 2001 shotgun slaying of his lover's husband, Oklahoma City advertising executive Rob Andrew.

The decision throws out a key justification for Pavatt's death sentence. If it stands, prosecutors will have to seek the death penalty again before a new jury.
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Much more at the link, including 25 (!) links to other Oklahoman articles about the case through the years.