ligature, basically. >> in other words, killed from behind. >> most likely, yes. >> all right. let me place another sample on this side. >> state crime lab scientist larry peterson attended the autopsy. >> i can recall at one autopsy pulling a fiber off of one of the victims. it was a green carpet fiber and mounted the sample on the slide went over and looked under the microscope and it's the same one. >> you knew right then? >> knew right then. >> apparent it's another victim of atlanta's child killer or killers. >> local television carried these pictures live from the crime scene. >> as it was studied it was apparent it was one of the three children listed as missing. we're told the child's body -- >> sheila baltazar got a call from her mother. >> she say, they found another