>> reporter: during that traffic stop, wright struggled with officers who were attempting to apprehend him after discovering an outstanding warrant for his arrest. potter pulling out a firearm. >> taser! taser! >> reporter: realizing she had shot wright as the car drove off. >> i just shot him. >> reporter: the defense today placed the blame on wright, saying all he had to do was stop and he'd still be here. the prosecution arguing, as a veteran of the police officer force, potter should have known the difference between her taser and gun. potter is expected to take the stand in her own defense next week. david? >> all right, stephanie ramos from minneapolis. thank you, stephanie. we turn next tonight to a story that horrified the nation. scott peterson was back in court today and so was the family of lacy peterson, watching it all again. it was a resentencing hearing after the murder case nearly 20 years ago. scott peterson, you'll remember, convicted in the killing of his pregnant wife lacy and their unborn son on christmas eve in 2002. tonight, peterson in court,