a heated conversation about ben oxley. james asking dawn if she wants to have him killed. but that's where the stories diverge. dawn remember, says she told james, no, don't do it and fell asleep on the couch. but that's not james matlean's story. >> she was ecstatic about what was happening. she was happy i was going to kill somebody. you know? >> reporter: it was after midnight. dawn drew him a diagram of ben oxley's house, said james, so he could find his way to the bedroom. then he went to the 7-eleven, drew $40 out of the atm with dawn's bank card. and then together he said they went to the walmart. dawn waited in the car while james did the shopping, shotgun shells, gloves, a flashlight. >> she was just very happy about it. i mean, like you would imagine a kid going to disneyland. you know? >> reporter: but there was a problem. they'd forgotten to bring the diagram of ben's house with them. >> the plan wasn't for dawn to go in the house. the plan was just for me to go in the house.