mccomas had never seen this until we came back to show it to him nearly 30 years later. >> this is a real strong resemblance to the person that i talked to, wayne williams. he had on a baseball cap. his hair was in an afro. so this just looks like him. >> williams agreed to let mccomas search his station wagon. on the floor, in the front of the back seat, he saw -- >> there was a nylon cord. the best that i could describe the nylon cord was a ski rope type, the woven type. and it was my guess about 24 inches long. >> no. >> williams denies there was any such cord. >> because if that rope had been in the station wagon that night, i'm sure they would have taken it. >> the fact that i didn't confiscate it doesn't make it go away. it was there. >> the nylon cord would never be seen again. >> could have been the murder weapon, as far as i knew.