however, the jury deadlocked. >> a mistrial has been declared in this case against sidney moorer. >> the prosecution didn't give up. when it came time for tammy's trial, they came up with a bold new strategy. they argued that tammy had not only been sidney's partner in crime, she'd been the mastermind calling all the shots. >> they believed that she was the ultimate brains behind this whole plan. >> prosecutors said it all boiled down to this. far from being the understanding wife who had accepted sidney's affair, tammy had been consumed by it. >> a fire of jealousy was lit in the defendant. she was livid. she was angry. >> an anger that became something more sinister when tammy heard a rumor around town. heather might be pregnant with sidney's baby. >> when this gets out and it becomes common knowledge, the fire, the jealousy that is in tammy moorer explodes into utter rage. >> prosecutors said that that rage wouldn't be satisfied until heather was out of the way. they said it was obvious how much the affair had upset tammy by the way she had treated sidney afterwards. >> she said sh