to get oriented to the crime scene. >> the man responsible for making sense of the crime scene was prosecutor fran humphries, then deputy chief solicitor for horry county. had the house been tossed, rifled? >> it had. this appeared to be a home invasion burglary. >> first take on it? >> first take, no question. >> it was a gruesome crime scene. the bathroom awash in charlie's blood. there was blood spatter in the bedroom where diane lay. but several feet from diane, there were notably a few small droplets. >> it appeared that someone involved in the crime, not the victims, was a bleeder. >> why couldn't that be from one of your two victims? >> it was apparent that charlie never left the area of the bathroom. and it was apparent that diane died where she lay. >> so it looks like your shooter, your intruder is bleeding. >> is bleeding. >> that's great evidence. >> it is if you can match it up. >> while crime scene techs process the house, investigators