at that point we started attacking the story. >> tim had a simple explanation for the timeline problems. he was confused. >> this is the corroboration. it got me confused. >> confused? you get confused when you lie. >> when the pizza arrived, i was still there. >> 8:48 delivery . >> it was right after the pizza arrived. i was there for 10 or 15 minutes. >> 'did you tell cops 7:30? >> i'm horrible at times and days and the problem was that making a mistake became i'm hiding something. >> cops call the mistake a lie? >> of course. >> why did you lie? it was 8:30 to 9:30. >> it's impossible. >> no. pizza receipt was in the trash. >> tim was tripped up by his own