murder, for slaughtering two people and not giving a damn one way or the other about anything but killing them. >> tom language was a detective with the los angeles police department. he couldn't tell me how he really felt 20 years ago, but he sure can now. >> simpson is a sociopath, simple as that. it took about 30 seconds for us to figure that out. >> reporter: let's go back to june 13th, 1994. >> how brutal was that crime scene? >> slashed, stabbed, everything else. nicole was nearly decapitated. it was a very bloody scene, it was obvious ron goldman had fought, and fought hard. >> reporter: the scene at nicole's condo didn't add up. who was ron goldman, and why was he there? as the lapd inspected the crime scene at south bundy drive, they discovered a bloody glove. >> of course, the interesting thing was, it was a left glove,