this plan i had, you know, he planned on killing his wife. he planned on having a relationship with kelli, blah, blah, blah. none of that's true. >> so what is true? is tom richardson a cold-hearted killer or just a broken-hearted husband? >> i was with juanita since 1981. and when you lose somebody like that, it's like you have this big hole in the side of you. and nothing will ever replace that. >> it would now be up to the jury to decide his fate. coming up -- a dramatic demonstration as jurors try to figure out what caused that mysterious bruise on juanita's leg. >> everybody was at the same point in thinking that oh, my god, that's probably exactly what happened.