One scenario could send Peterson to the death chamber. The other could set him free. Could either be true? Or has a thirst for the sensational spawned titillating tales when the reality may be something far simpler: a cheating husband killing his wife to be with his mistress?
The far simpler theory won't fly in light of Cory, IMO. We don't know exactly when Cory and Scott met, but it was in November. Scott met Amber on November 20. If Cory and Scott met before November 20th, Scott didn't have a mistress, Amber. If after November 20th, only slightly, so that won't fly with a jury either, I don't think.
Of course, I believe Cory and Scott did meet; you may not think so.