with the interrogation over, krebs brings investigators to the crime scene keeping his promise to larry hobsons a weird relationship, but it's a relationship. >> despite that relationship, hobson testifies at krebs' 2001 trial persuading the jury to send him to death row for raping and killing the students.ç >> from san quentin, krebs writes christmas cards to hobson. grateful for the way he questioned him with decency and kindness. >> it just showed he respected me for the job i had to do. it's just business. >>> coming up, what's it like to be 12 years old and sitting in the interrogation chair? >> i didn't do do it. i didn't do kill my sister. i wouldn't kill her. if we toa and reimagined nearly everything in it? gave it greater horsepower and best in class 38 mpg highway... ...advanced headlights... ...and zero gravity seats? yeah, that would be cool. ♪ introducing the completely reimagined nissan altima. it's our most innovative altima ever. nissan. innovation that excites. ♪ if you made a list of countries from around the world...tes. ...with the best math scores. ...the united states w