karen pannell's autopsy did provide a curious inconsistency. there were three slices missing from the pizza delivered to karen's apartment the night she was murdered, but the medical examiner couldn't find them. >> she did not have pizza in her stomach. >> the delivery man said he handed the box to karen just before 9:00 p.m. at the door, so the killer may have been inside when the pizza was delivered or arrived shortly afterwards. karen's boyfriend, tim permenter, who discovered her body, had an alibi for this time period. he was with a friend in a cabin at moon lake, 25 miles away, an alibi that checked out. the person of most interest to police was roc herpich, whose name was written in blood next to karen's body. >> i kept my mouth shut, but it does. it's disturbing. it's very disturbing. >> but a closer look at the autopsy finding started to cast doubts on the letters written on the wall. karen had suffered a severe injury to her spinal column. >> one of the stab wounds goes and partially severs the spinal cord at the level of the eighth th