it was who done it. everybody loved her. they couldn't imagine who would have done her. >> the fire scene left few clues. >> it was where the assault, sexual assault took place in her bedroom. it was so burned. could basically make out where the bed was. >> footprints, forensic evidence all up in smoke, or destroyed by something else discovered in the apartment. >> he did a really good job of cleaning up. he did quite the job with the bleach. >> bleach? the apartment still smelled of it despite all the smoke. but in spite of all that bleach, they did find microscopic evidence that the attacker left behind. his dna. >> and the majority of that dna was under lydia's fingernails, so no doubt she put up a fight. >> she was trying to defend herself. >> yeah. now lydia was continuing that fight, odds not good. >> she was not out of the woods is what the doctor kept telling