ORANGE COUNTY, Fla. -- Eyewitness News got details Friday of a working theory held by investigators that little Caylee may have drowned in the family swimming pool. A source close to the investigation revealed only to Channel 9 a working theory of the crime involving Caylee drowning and what may have happened next.

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GEORGE LASHES OUT AT MEDIA: See Images | Watch Raw Video
CINDY TALKS: Cindy Anthony Responds To Drowning Theory
LIES: Search Warrant Reveals Lies Told By Casey
TEAM COVERAGE: Caylee Theory Uncovered, George Lashes Out
LEE TALKS: Interview With Brother Before Jail Visit Gets Denied
VISIT REFUSED: Official Says Casey Declined Brother's Visit
ARCHIVE: Read Previous Reports Related To Anthony Case
MESSAGE BOARD: Talk About Anthony Case, Search For Caylee

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The source said some investigators believe a flurry of phone calls from Casey to her parents on June 16 could be an indication that whatever happened to Caylee happened that day. On that day, Casey and Caylee were last seen together by Caylee's grandfather George at the Anthony family home where they lived.

Caylee Marie Anthony loved the water and some investigators are considering whether that has something to do with her disappearance.

The theory is based on the following facts.

Fact #1: Casey Anthony's phone records show a flurry of unanswered phone calls to her parents on June 16.

Some believe that could be because that's when something happened to Caylee. A possibility being considered is Caylee could've gotten into the backyard pool on her own and was discovered too late.

Fact #2: Eyewitness News was told the Anthony family was careful to keep a ladder near the pool safe from Caylee, but that around the time of her disappearance the ladder was up.

"Boy, how she can just figure things out. We, of course, as every family would, we've had to childproof everything and she's smart enough to take it off," Lee Anthony said.

Fact #3: A neighbor says, right around the time Caylee disappeared, Casey had backed the car up to the garage, which the neighbor said was unusual, and borrowed a shovel for about an hour.

Fact #4: The car was later found abandoned at the Amscot at Goldenrod and Colonial and was towed. When Casey's parents found out and got it back weeks later, Caylee's disappearance began to unravel. Caylee's grandmother called 911 and made a frantic plea for help.

"There's something's wrong! I found my daughter's car today and it smells like there's been a dead body in the damn car!" Cindy Anthony said in the call.

Fact #5: Investigators said they found evidence in the car that indicated Cindy Anthony's statement was true and the FBI is testing it to verify that.

"The first 24, 48 hours I had the 'what if, what if, what if.' I also went over all of it with the sheriff's department. Sgt. Allen can tell you that I sat down with him and talked about different things. He made me feel a lot better when they examined the pool, around the pool area, because, to me, that would be the riskiest place that something could have happened," Cindy Anthony said Friday afternoon in response to the theory.

This is not the only theory investigators are considering, it's only one of them. They're still hoping to find Caylee alive.

Channel 9 has also learned that new technology is being used to try to find out if in fact there was a dead body in Casey's car. A new lab test is being used on a sample from a stain found in the trunk of the car. A new device tests gases emitted from the stain to determine whether there's evidence of decomposition.

GEORGE ANTHONY LASHES OUT AT MEDIA

There was an angry and emotional outburst Friday morning from the grandfather of missing 2-year-old Caylee Anthony (See Images | Watch Raw Video). There was also emotion at the Orange County jail, frustration from Lee Anthony when his sister Casey refused to see him.

It's been 24 days since Caylee Anthony was reported missing and the search for her is starting to take its toll on George Anthony. He lashed out at the media.

"I'm not talking to anybody. Stay off of my property! Stay away from me. Stay away right now!" he yelled at the media Friday morning as he took garbage to the curb.

George yelled at members of the media that have been documenting his every move since 2-year-old Caylee was reported missing more than three weeks ago. Clearly, the stress is wearing him down.

"You people have no idea what we are going through! You don't care about me! You don't care about her! You don't care about my granddaughter!" George shouted at the media. "You want sensationalism. Shut up! I'm talking. I am talking!"

This was on the same day the toddler's mother, Casey Anthony, rejected a visit at the jail by her brother Lee and one day after Orange County investigators released new details in the case that they say is filled with inconsistencies.

Detectives said what Casey has been telling them all along about her missing daughter simply doesn't add up. Caylee's grandmother Cindy stayed behind Friday morning to explain why George is falling apart.

"He's been angry every day, you just haven't seen it. Ok? You hear something that finally comes to a head, stuff that festers. Anger has been there since day one," she said. "Angry at the situation. Angry that Caylee is not home. Angry at a lot of things. We're helpless."

Little Caylee turns three Saturday, August 9. Cindy said the family bought a closet full of presents for her. Perhaps they are beginning to realize the child might not be there for that celebration.

CASEY REFUSES SCHEDULED VISIT WITH BROTHER LEE

When Lee Anthony showed up at the Orange County jail Friday morning for a scheduled visit, Casey didn't want to see him. Lee had plenty to say when he arrived, but not a word when he left (Interview with Lee).

Lee spoke at length with reporters before his scheduled visitation about how he still believes Casey's story despite mounting evidence against her, but when he sat down to talk to her inside the video visitation center, he was told she didn't want to.

Lee was asked if he thought his sister was being truthful.

"To the best of her ability right now, I do," he said.

Sounding at times like his sister's defense attorney, Lee Anthony dismissed a recent statement by one Zenaida Gonzalez that she's not Caylee's nanny and never heard of the missing girl.

"There are particular phone call records from that day that are extremely interesting," Lee said. "To try and pinpoint, you know, the idea that it's that person is ridiculous."

Detectives allege there was no phone call from a Zenaida Gonzalez or anyone at the time Casey said she talked to Caylee. But Lee isn't so sure.

"There's plenty of calls unaccounted for. There are some calls that didn't have a caller ID," he said.

The 25-year-old account manager maintained he's keeping an open mind about what happened to Caylee while he carries on his own investigation with the help of volunteers and friends. And, since right now the most serious charge against his sister is child neglect, he won't speculate she's done anything worse.

"Frankly, I wouldn't be here if I thought she wasn't still cooperating with me," he said.

But Friday, she didn't. When Casey was asked by a corrections officer if she wanted to meet with her brother, she declined.

"I've just been informed by the visitation supervisor that when visitation session started, Casey Anthony was not at the visitation unit over in her housing area. Correctional officer came on over the screen and told Mr. Anthony that Casey did not wish to have the visit occur and then he left," said Allen Moore, Orange County Corrections. "She did not wish to have the visit. No reason was given for this. It's the inmate's right not to conduct a visitation if they choose to." (Interview With Moore)

The corrections officer asked three times if she was sure she didn't want to visit and each time Casey said no. He has rescheduled a visit with her for next Tuesday at 9:00am.

DIVE TEAM TRAINS NEAR ANTHONY HOME

The Orange County sheriff's dive team members are searching waterways near the Anthony home. Eyewitness News has been told it's part of a routine monthly training, but there is crime scene tape up blocking the search area.

The second Eyewitness News drove up, deputies started taping areas off with crime scene tape. Across the lake, they taped off more areas. Even though deputies said it's not really a crime scene investigation, it sure looked that way.

"Just training," an official said.

Even as deputies unfurled crime scene tape around the water, they insisted the massive search just down the street from missing toddler Caylee Anthony's home is nothing but routine training, but the crime scene tape and way they're acting certainly suggests otherwise.

"I'm surprised that, of any lake in Orlando and in any neighborhood, that they picked this one. I know they are calling it training, but we'll have to see," said Kimberly Hafid, who lives nearby.

A captain with the sheriff's public information office insisted late Friday morning that it's just scheduled training, but he admitted, given the circumstances, they'll have their eyes open just in case. He also said the tape was needed to stop media from interfering with training.

Deputies did find three cars under the water. All three are believed to be stolen vehicles dumped by thieves.

According to the sheriff's office, there is no plan to return to the body of water for training or otherwise at this time.

DEFENSE TEAM AGAIN TRYING TO LOWER BOND

Casey Anthony's defense team is trying again Friday to reduce her $500,000 bond. A motion was delivered Friday morning to the Fifth District Court of Appeals in Daytona Beach.

The only action the court took Friday was sealing the motion that was filed meant to help get Casey Anthony out of jail. The sealed motion effectively keeps anyone from knowing, at least for now, what new arguments Casey Anthony's attorneys are making to reduce her bail.

Judges inside the court are reviewing the motion for a rehearing on the denial of a lower bail for Casey. It was a week ago the same court did not see enough evidence to overturn her bond.

The rehearing request isn't necessarily an unusual step. Sometimes the court will deny an appeal and then new information comes up and attorneys ask them to reconsider the case.

The formal charges filed against Casey did not include murder and the state had argued that the possibility of murder was one reason Anthony should stay in jail with her $500,000 bond. There were some documents attached to the actual arguments filed by attorneys Friday morning, but it won't be known exactly what was in all the paperwork until the court is finished reviewing it.

It's not clear when the court will make a decision or if they'll ask for a response from the state first.