>> pants and shoes and a shirt like a white/red. >> the shirt was white and red? >> yeah. her shoes. shoes had white laces, and we were tying them. >> reporter: then, joanna said, daniel, l.j. and "v" wrapped the unconscious girl in a blue tarp, put her in a white suburban and took off. and when they came back hours later, she said daniel was covered in blood and the girl was not with him. >> i asked daniel where she was, and he said that she went swimming. he said, she put up one hell of a fight once we got there. >> reporter: joanna's story rang true, leading derek johnson to believe the mystery girl was annie and daniel ferry was her killer. >> did you see blood on the carpet? >> yeah. >> was it carpet or hard floor? >> it was carpet. >> okay. >> i'm positive it was carpet. >> reporter: now the search team found the carpet in ferry's house had been ripped up and the walls were freshly painted.