>> his name is theodore bundy, and he's wanted for questioning in 36 rape murders. >> reporter: his trial a spectacle. his execution cheered. every year since, kimberly's friends gather by her gravesite. >> i don't want people to remember ted bundy, the monster that took from our life. instead i would like for people to focus on the memory of kim, who was the angel to our lives. >> the families of his victims try not to remember him, but behavioral analysts still study bundy's psyche trying to figure out what causes people like him to become such prolific murders. >> matt gutman thank you. tonight 9:00 p.m. eastern a special two-hour 20 documentary. those new interviews and the moment that ended it all. 9:00 p.m. eastern right here. in the meantime much more ahead on "world news tonight." the salmonella scare spreading to 41 states. what the cdc is saying tonight. the house up in flames, a woman trapped inside screaming for help. you'll see the deputies and