after tara vanished, barr and mcmahonis were going on trial for her murder. >> what happened inside that house? a jury finally hears the story. coming up -- >> we believe she confronted him. >> a mother's pierce veerns brought it this far. >> she fought and fought and fought. >> when "the knock at the door" continues. fought >> when "the knock at the door" continues. but super poligrip gives him a tight seal. to help block out food particles. so he can enjoy the game. super poligrip.