firefighters as they entered the room and after they suppressed the fire, not during the murders. >> that meant debbie reinboldt's testimony about the lamp had been false. even more troubling were facts callahan learned about the purported murder weapon. >> the knife that deborah reinboldt presented was a folding knife, it's called the racazo, where the knife bends over. that knife had a blade of 5 and some inches long. >> one of the things the pathologist did was measure the depth of the wounds. on both bodies, the wounds were more than six inches deep. we then took it to michael baden, a forensic pathologist, and he provided us with an affidavit and analysis. >> what board certifications do you have? >> three areas of pathology. anatomical pathology, pathological pathology, forensic pathology. >> i think dr. michael baden was able to refute the knife very easily. it was a five-inch blade, the