This is a rush transcript from "On the Record ," December 5, 2007. This copy may not be in its final form and may be updated.

GRETA VAN SUSTEREN, HOST: We know Stacy Peterson was alive on October 28 at about 10:00 AM. That's the time her friend spoke to her by phone. And since then? Well, police classify Stacy's disappearance as a potential homicide, with Stacy's husband, Sergeant Drew Peterson the suspect.

And former LAPD homicide detective Mark Fuhrman has pieced together a timeline that we know happened the day Stacy Peterson disappeared. Joining us in Spokane, Washington, is Mark Fuhrman. Mark, we can't get a timeline out of Craig — I mean, out of Drew or out of Joel, his lawyer. So what have you been able to piece together as a timeline?

MARK FUHRMAN, FMR LAPD HOMICIDE DETECTIVE, FOX ANALYST: Well, Greta, you know what's interesting about Joel Brodsky and Drew Peterson is they can't address the timeline because Drew has created an entire mess for himself. There's no place that the investigators can't go to find a hole.

Start with the beginning. And there's certain segments that I find the most important. About 10:00, 10:15, the call that comes in that Stacy is last talked to, the call that Sharon, the neighbor, puts in to talk to Stacy, she is not available. So between that time is either a time when she's incapacitated, she's not able to get to the phone because she's under the control of Drew Peterson, or she is by then deceased.

The next two most important calls are the call at 8:00 o'clock that Drew Peterson says that he puts in to Stacy's cell phone, which — I believe that Thomas Morphey is with him at that time, and he probably witnessed that because that would fit in with Drew believing she's alive and just missing or not at home. And then, of course, the 9:00 o'clock call that evening that Thomas Morphey sees come up on the cell phone that he's told not to answer.

The next huge time is 11:00 o'clock that night, when Cassandra comes to the home. No Drew Peterson. No Pontiac. No Denali.

Now, what exactly was Drew Peterson's reason for not going to work? Well, we can conclude that Stacy is not at home. Whereabouts unknown. Possibly she ran off with another man. We don't know at that time. Drew Peterson didn't know at that time. So he says, I've got to take care of my kids. So he's gone between 7:00 to 10:00, probably 10:00 to 11:00, 11:00 to where I don't know. And then at 2:30 in the morning, Cassandra calls Drew Peterson once again. He is not accounting for his time, where he is, and he's breathing heavy. His timeline is all over the place, and it's a dream for the investigators.

VAN SUSTEREN: All right. Now, let me back up for a second. At 10:00 or 10:15 in the morning on that Sunday, October 28, is when the — she received the phone call, when Stacy received the phone call from the friend, or at least talked to the friend. About noon, that's the phone call — that's when Sharon Bychowski, the neighbor, called over to the Peterson home. Tell us what happened in that phone call.

FUHRMAN: Well, in this phone call, Sharon calls, and one of the children, Chris, answers the phone. He's 13 years old. He answers the phone. Sharon says, Can I talk to your mom? Long pause. And Sharon has described this to me as a very uneasy pause. She follows up because he doesn't say anything, You don't know if your mom's there? And at that time, Drew takes the phone and tells Sharon Stacy went to her grandfather's to run some errands.

Well, we know that's not true. That's lie one. Drew Peterson has committed himself to a lie that needed to be told because he didn't expect Sharon to call. He didn't expect somebody to call for Stacy. And then he committed to something that he can never erase now. Now, that's the first time.

VAN SUSTEREN: At about 1:00 o'clock or 1:15, did Drew ask Sharon to baby-sit on that Sunday?

FUHRMAN: No. I believe Sharon, when she was in that conversation with Drew Peterson at noon, she said, Well, if you need me to watch the younger kids or you want me to feed them, bring them over. Now, when he brings the two younger children over at 1:00 o'clock, we have to understand that Sharon's not paying attention to what cars are parked there.

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