denise william was on trial for the murder of her first husband mike. l the trigger but hatched the plan with her lover. in riveting testimony, brian spilled every chilling detail of execution but the defense was about to come out swinging and the convicted felon's credibility would be their number one target. here is dennis murphy with the conclusion of "secrets of lake seminole." >> the prosecution case would live or die by its star witness. would jurors believe brian winchester? does it come to a matter of jurors? it's he said, she said. pick one. >> yes. >> who do you believe? >> i believe her. every day. twice on sunday. >> i had my gun in the boat. >> brian's chilling account of murdering his best friend in a plot with mike's wife denise was an award worthy performance, thought denise's attorney ethan way. compelling, that is, if you were a sucker for crocodile tears. >> he is a well-rehearsed, well-trained, well-timed liar. >> denise's defense boiled down to brian being an obsessed lone wolf. >> he coveted denise. he had this desire to have her. >

denise. hello. good morning. it's great to be here. so glad you're here. and lynn williams is a long time friend and colleague who is an educational program consultant to the museum. so good to see you lynn good to see you too, and good morning to both of you and our guests. during today's program, please. send your questions for denene and lynn by posting them in the comments section and we'll get to as many of them during the course of the live show as we have time for. but lynn, let's begin with you and setting the scene. we have a lot of international viewers of this program may be less familiar with the american context. tell us about some of the pressures that average americans were grappling with in the 30s and 40s and more specifically the way that racism influenced the country at that time. well in order to understand this period i think i'm going to focus on three major realities. the first one was that the united states was in the throws in the middle of the great depression there were bread lines and here you see this is a migrant workers that are huddled in thi