they did not find lubey. instead, police found two other young bodies.left here at the same dumping ground. the number of known deadnow 15. the unsolved murders of so many children had become front page news around the nation and the world. >> this is the reward. >> the city announced a $100,000 reward soon to dwroe to half a mill yob. many suggested by psychics. at the state crime lab, larry peeter southern was sifting through thousands of fibers, nylon, rayon, acrylic. >> is it like looking for a needle in a hay stack? >> it's like looking for multiple needles in multiple hay stacks. >> peterson realized they were seeing one green carpet fiber with a unique shape. this is a cross section of that fiber. magnified many times. >> this particular fiber had two very, very large lobes and one short lobe. >> the lobes ra the three ends of the boomerang shape. >> this is a single tuft from the carpet cut in cross section. >> yeah, i can't tell that's green. >> even putting the tiny fibers under the microscope didn't help me. >> how can you tell what color this