>> i don't know. >> tim permenter was tried and convicted of first-degree murder and sentenced to life in prison without parole. interestingly, he wasn't grateful that the judge spared his life. >> tim told us that he wanted to go to the electric chair, that he did not want to spend the rest of his life in prison. >> it was a textbook case of someone who thought he could outsmart investigators. but the more he tried, the more evidence he left. >> he's a guy that thinks he's sharper and smarter than everybody else. and so, he actually overdid it. >> this particular scene was a wealth of forensic evidence. however, if you don't know what to do with that forensic evidence, it's worthless. >> forensics pretty much saved my life. >> if it's not for that pizza box, if it's not for the dna under karen's fingernails, you have a guy who potentially is framed, and you have another guy who gets away with murder. >> what isis has been able to do is take control of the whole valley. from the border crossing all the way to the western outskirts of baghdad. >> i was amazed they lasted that long in th