The PI on the show was the same one who has been saying how the 5 cases of missing blonde women he has highlighted could be connected. Here is his segment from the transcripts-
http://edition.cnn.com/TRANSCRIPTS/1111/22/ijvm.01.html
VELEZ-MITCHELL: Where is this beautiful mother of four, Karen Swift? Now, is there any link to the disappearances of four other women within a 130-mile radius? All of them have a very similar look.
And the theory that there might be a connection was first brought to our attention by private investigator Bill Warner, who joins us tonight.
Bill, have you been, I think, checking this out, and you have apparently found out that three of these five women`s cell phones have not been found. Do you have any new information for us that might give us an idea of whether these cases are connected.
WARNER: Well, I want to go back to what Preston just said concerning his mother`s cell phone, and it appears they pinged it at 5 a.m. on this Google search, and it was 12 miles away from the home. The car was found about a half a mile away from the home. Kind of indicates that she had gone mobile.
Also back to Holly Bobo, when she was kidnapped in April of this year, her cell phone was found on the side of the road, six miles down the road, heading towards Nashville. Again, she had gone mobile. The similarities of the looks of all these women, yes, that`s a real problem I have. I can`t understand why. Maybe two, three girls looking alike, but five, that seems to be a pattern.
VELEZ-MITCHELL: Have police given you any feedback on your theory?
WARNER: No. No. There`s no communication there. But the FBI did a report about two years ago that kind of is very interesting as far as serial killings on the highway. Interstate trucking was involved. Over the last 40 years, 440 cases of bodies that were found were linked to the trucking industry. Of the 440 cases, only 30 have been solved. So 11 cases a year. That`s astounding.-