. >> the prosecutors howard cummings, amy fitzhugh and bob zellinger. >> we think she came home from this party and she had said some things in front of him that might have upset him a little bit and that he choked her. >> killed her then, their theory goes. put her body in the trunk of the car, drove her to the drainage ditch and returned home to manufacture an alibi. why? they started with that shredded marriage. brad's affair. cutting off her financially, stopping her from moving back. she was increasingly desperate. >> jennifer, he's breaking me. i don't know how much i have left to fight. >> she told me when she slept at night, she slept with her jeans on and the keys in her pocket with the children and the door locked. >> he never beat her. it wasn't physical said the prosecutor, but he used financial power to exert absolute control. this was a form of domestic violence. >> she was in this abrasive, rough relationship at that point. he trapped her. he controlled everything about her life. >> wait a minute. nancy's allowance was $300 a week. would a jury think that was evidence

. >> the prosecutors howard cummings, amy fitzhugh and bob zellinger had their own idea of what happened to nancy beginning the night before she disappeared. >> we think she came home from this party and she had said some things in front of him that might have upset him a little bit and that he choked her. >> killed her then, their theory goes. put her body in the trunk of his car, drove her to that drainage ditch, returned home to manufacture an alibi. why? they started with that shredded marriage. brad's affair. his cutting off nancy financially, stopping her move back to canada. she was, testified nancy's friends, increasingly desperate. >> she said, "jennifer, he's breaking me." she said, "i don't know how much i have left to fight." >> she told me when she slept at night she slept with her jeans on and the keys in her pocket with the children and the door locked. >> he never beat her. it wasn't physical, said the prosecutors, but he used financial power to exert absolute control. this, they said, was a form of domestic violence. >> she was in this abrasive, rough relationship at tha