>> scott rothstein. >> and how much was the reward in the case? er got the reward. the collapse of rothstein's ponzi scheme put an end to that. and as for the prosecution's theory of motive, fletcher argued it was as thin as it was nonsensical. >> you would think that if you were so enraged that your wife were doing this, that you wanted to harm her, and not someone else. >> as for debra villegas, defense attorney flesher surprised everyone when he didn't ask her a single question. but he did go after the son, caleb, challenging him and to why he sat for so long on this story, about his father bad-mouthing melissa. >> you didn't tell your mother about when you first heard about that did you? >> no. i didn't see any relevance. >> and when you spend time with him, things were good? >> yes. >> we love you that? >> yes. >> what's yours notice the tear rolling down tony's cheek, so on to the scientific evidence. the soften first. lawyer fletcher found a mistake in a chart that states expert had used. was the expert analysis in fact sloppy? >> if you're