ORLANDO, Fla. -- New FBI interviews released Friday revealed the most damaging evidence in the case against Casey could come from her own father.

"The worst odor that you could possibly smell in this world. I've smelled that odor before. It smelled like a decomposed body," George Anthony told investigators during a July 31 interview.

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FBI QUESTIONS CINDY: Part 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11
FBI QUESTIONS GEORGE: Part 1 | 2 | 3 | 4 | 5 | 6 | 7
VIDEO REPORT: FBI Releases Video Interviews
WITNESS LIST: See Defense's Witness List
NEJAME TALKS: Watch Thursday's Full Interview
NEJAME RESIGNS: Read Attorney's Full Statement
WITNESS LIST: See Complete List Of State Witnesses
MESSAGE BOARD: Case Against Casey Anthony
ARCHIVE: Previous Reports On Anthony Case

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George is a retired homicide investigator. He said he would never forget the smell of human death and that's what he said he smelled coming from his daughter's car.

Eyewitness News obtained new video Friday showing the FBI interviewing George and Cindy Anthony.

GEORGE TALKS ABOUT "DISTINCT ODOR"

George Anthony, in the video, appears to be agonizing over what he knows and what he doesn't want to believe as a grandfather and father. One thing he seems sure of is that what he smelled in Casey's trunk was not rotting pizza, but rather the smell of human decomposition and, he said, it emanated into their home.

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FBI QUESTIONS GEORGE: Part 1 | 2 | 3 | 4 | 5 | 6 | 7

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Two weeks after Caylee's disappearance came to light, George talked to the FBI for more than two hours. His emotional turmoil was raw when he talked about smelling Casey's car.

"That distinct odor. That's, that's something you never forget. That distinct odor. I, I, I believe something was placed in the back of that trunk," he said.

George told FBI Special Agent Scott Bolin the basketball-sized stain in the trunk also reeked and the agent said he expected to find out from the lab that there was human DNA in it.

"It all boils down to my daughter knows something. She won't say anything," George said.

Not for the first time, George blamed Casey's defense attorney, Jose Baez, for keeping her quiet at Caylee's expense. George told Bolin that he knows Casey is going away for a long time, but believes if she talks she can spare herself possible harm from inmates who target people who harm children.

"The answers are still very nearby," Bolin said. "They may not be at the house with you right now, but they're nearby."

George was trying to piece together the disjointed details Casey was revealing, but came to the same conclusion investigators have: that her story makes no sense. He said he misses looking at the moon and stars with Caylee every night at bedtime.

"I'd give up my life for her," he said.

GEORGE, CINDY TELL DIFFERENT STORIES

FBI interrogations expose George and Cindy Anthony and their stories are drastically different, especially when it came to Casey's abandoned car.

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FBI QUESTIONS CINDY: Part 1 | 2 | 3 | 4

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Two weeks after Cindy found out her granddaughter was missing and called deputies to arrest her daughter Casey, she was defending Casey to the FBI. She said Casey is smart enough not to leave self-incriminating evidence behind in her car trunk and, Cindy said, if it were her she'd have run the car into a river or off a cliff.

"I find it very hard to believe that Caylee, Casey had an opportunity to put Caylee in there for a short period of time to get the car stench that bad and take her somewhere else," Cindy told investigators during the July 30 questioning.

But her husband George told the FBI the very next day that Casey's story makes no sense.

"There's little threads of truth in all these little lies she's telling, I know it, but we just can't get it together," George said.

FBI special agent Scott Bolin's interview with George revealed something never heard before, what Casey told her parents during a jail visit about how the mysterious nanny kidnapped Caylee.

"Zanny is supposed to be the person that knocked her down and took her kid in front of witnesses, but we have no witnesses that say this happened outside of her," he said.

But George admitted that Caylee never ever mentioned Zanny the Nanny even though she often spoke of others she knew well.

"If you asked her, 'Did you have a good time with Zanny today?' There was never any brightness or anything like that come through her.

"There was no recognition on her part?" Bolin asked.

"No, none whatsoever," George replied.

If George and Cindy were watching news reports about the FBI videos, it would be the first time they saw what the other said to investigators. Eyewitness News asked George on Friday about the contradictory public comments he makes about Caylee being alive and the private comments revealed Friday.

George admitted he and Cindy were not always on the same page regarding Caylee. He wouldn't talk on camera, but he also said he keeps a journal of everything he tells investigators to keep the story straight.

GROUP RELEASES "CAYLEE SIGHTING" PHOTO

Even though the evidence shows little Caylee is dead, her grandparents are still claiming she's alive.

Friday, a group representing the family, The Help Find Caylee Search Team, released a new picture (see photo) of what they call a possible sighting of Caylee Anthony at the Florida Mall in Orlando on October 16.

It's the latest in a series of possible sightings that, so far, have turned out to be unfounded.

The Orange County Sheriff’s Office blasted the Anthonys after the release of that picture. The Sheriff’s Office said it’s not looking for Caylee. Representatives said, “We are confident that she (Caylee) is dead.”

The Sheriff’s Office went on to say that it’s sad that the Anthonys, “can’t look at that picture and tell that it is not their grandchild.”

The statement also said it’s a shame that innocent children’s pictures are being released as tips.

WFTV OBTAINS DEFENSE'S WITNESS LIST

Eyewitness News obtained the witness list Friday for Casey Anthony's defense (see list). The list includes the same people the prosecution will call, except for three people.

Those three are all forensics experts, including Henry Lee, who worked on the OJ Simpson case as well as the JonBennet Ramsey case.

The defense will also call Larry Daniel and Larry Koblinsky, who is a forensics professor and frequently a guest on the Nancy Grace Show.

ANTHONYS' ATTORNEY SUDDENLY RESIGNS

In a surprise move Thursday, Cindy and George Anthony's high-profile attorney resigned as their lawyer.

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NEJAME TALKS: Watch Thursday's Full Interview

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"Unfortunately, I have made the decision that it is best not to continue my representation of George and Cindy Anthony," NeJame wrote in a statement released Thursday afternoon by his law firm (read full statement).

NeJame represented only Cindy and George Anthony, not Casey, and said he was working to help them as they searched for their missing granddaughter, Caylee.

"George and Cindy have a belief that their beloved granddaughter, Caylee, is still alive. Tips and leads continue to come in. I believe strongly that they should have every right to maintain their hope and faith that one of these “sightings” will miraculously be the one that brings Caylee home to them. What parent or grandparent would surrender such hope?" NeJame wrote.

NeJame, in his resignation letter, seemed frustrated with the Anthonys' willingness to do what they want and comment publicly to the media against his advice.

"Although I was quite successful in resolving a multitude of matters, I am unable to go further to help George and Cindy find Caylee in my current role. I can only provide my best advice and just respect any client’s prerogative to do what they deem is best, whether they choose to follow my guidance or not. However, there is little value or use I can provide to any client if they choose to act and comment at will," he wrote.

NeJame then turned his attention to what he called "inaccurate accusations."

"Some ignorant and judgmental members of the public though have made hateful and inaccurate accusations against me and others, when they had no idea whatsoever what was really going on. As my new, good friend, Tim Miller from EquuSearch, tells me 'everybody associated with this case gets body slammed.' However, like Tim, when you know in your heart that you’re doing the right thing, you just move forward knowing that right will ultimately win out. Some have falsely accused me and some others of being in this for the money. If they only knew how utterly wrong and misguided they are."

NeJame also pressed for respect for Cindy and George as they continue searching for Caylee.

"Allow Cindy and George Anthony the respect and decency of dealing with their hope and efforts to find their missing and beloved Caylee as they need to. Allow those with differing opinions on finding and searching for Caylee, whether she is with us or not, to do their jobs without interruption," he wrote.

Late Thursday afternoon, George and Cindy Anthony released the following statement in response to NeJame's resignation: "We appreciate the time and energy that Mr. NeJame and his law firm has dedicated to representing us in the last several months. We respect Mr. NeJame's decision to resign as our representative as we agree that he can no longer benefit us in our quest to find our missing granddaughter Caylee Marie. We wish Mark and his staff all the best."