This is a rush transcript from "On the Record ," March 9, 2009. This copy may not be in its final form and may be updated.

GRETA VAN SUSTEREN, FOX NEWS HOST: Just when you think the Caylee Anthony murder case cannot get any weirder, it just has. Caylee's mother Casey sits behind bars, charged with her daughter's murder.

As you probably remember, a meter reader found Caylee's skull in December just blocks from the house the toddler was living in. Now we are learning that weeks after Caylee's disappearance, Casey began collecting photographs of skulls and sketches of kissing skeletons.

Joining us by phone is former LAPD homicide detective Mark Fuhrman, and in Orlando, Florida, defense attorney Diana Tennis.

Mark, first to you. Boy, it's peculiar, is it not?

MARK FUHRMAN, FORMER LAPD HOMICIDE DETECTIVE: It is really strange, and I would like to know the source of the sketches and the pictures of skulls, Greta. But sometimes it is just coincidentally things that people do fall into something that they're involved with. And sometimes they're not connected, sometimes they're directly connected.

But it does none get much stranger than this case, I agree with you.

VAN SUSTEREN: Diana, what do you make of this, and is this sort of a weird distraction for the rest of us to be consumed with it, or does it have some sort of evidentiary value for the prosecution?

DIANA TENNIS, DEFENSE ATTORNEY: Well, I suppose they're going to try to make a lot of what a bizarre coincident this is.

But even if this were some sort of telling sign, it would have been months prior to the body being discovered or the body even potentially being reduced to skeletal remains.

And I do not know that I give this particular woman the foresight to see that far down the road, whether she had something to do with it or not.

So I think it is creepy, but I do not know that I put a whole lot of weight on it.

VAN SUSTEREN: I guess the plot thickens with that aspect to it.

Let me turn then to the issue of her ex-boyfriend, Tony Lazarro, Mark, who was wired by police and cooperated with police -- not that he was in any trouble. I don't mean that he was in any trouble.

But he was wired by the police and then went and spoke to Casey's brother. What did the police get out of that?

Watch Greta's interview

FUHRMAN: Well, I don't know if they knew what they were going to get out of that, but I think that they have Tony, that either because of guilt that he didn't know what was going on, that his suspicion or his belief that Casey actually killed her daughter or was responsible for her death.

Or there is some other mitigating factor that the police were able to convince Tony wear a wire.

I think it is good police work that they actually go with as many places as they can, because they really do not know what is going to turn up, because they are still looking for a cause of death. Even though they have declared in a homicide, they would like to fill in between the point the child was last seen in the trunk of the car decomposing and then where she was ultimately found.

VAN SUSTEREN: Diana, there are 1,100 pages of discovery that were recently released, and in reference to part that they had some discussion about what Tony got when he talked to Lee.

One of the things that I thought was interesting, not that there seems to be much question, but it says Lee Anthony-that's the brother of Casey- said to Tony, the ex-boyfriend, that Casey Anthony never said anything about a nanny.

Although, however, he thought recalled a Zenaida how hung out at the Anthony home. And you know that Lee is going to be put on the stand and this whole Zenaida thing will just be put to rest, right?

TENNIS: I would be curious to see in the transcript of that conversation. I am not sure what terminology was used during it, but he did say that he remembered a Zenaida being at the home.

And it was obvious that her brother Lee, talking to this insider, and he did not know they were being tape-recorded, so obviously, Lee let down his guard a little bit, and still, I believe in his heart of hearts, believes his sister.

So I thought was kind of interesting. I thought it was interesting to see kind of a snapshot of the investigation.

In July 2008, they were obviously in overdrive, because at that point everybody had their suspicions, but they did not have a body, they did not really have a lot. And they were really going, as Mark pointed out, covering all of the bases and then some to try to come up with something.

VAN SUSTEREN: Go ahead, Mark.

FUHRMAN: Greta, you know what was interesting, when I sat down to talk to Lee last August in 2008, he was--in my impression--he was very, very convinced that Casey either knew or was involved in the disappearance of Caylee Anthony, and I don't believe that he believed that his niece --

VAN SUSTEREN: The story --

FUHRMAN: The fact of what he was presenting when he decided that he was going to do his own investigation, I think actually put himself on the police radar right at that moment, because he was actually, in some regards, obstructing justice.

VAN SUSTEREN: Mark, Diana, thank you both very much.

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