ORLANDO, Fla. -- Authorities on Friday released the 911 call placed shortly after an Orange County utility worker discovered a child's remains near the home of the grandparents of Caylee Anthony, who was last seen in mid-June.

---

VIDEO: 911 Call
VIDEO: Evidence Seized | Clothing Found
VIDEO: Sheriff Interview | Caylee's Remains?
VIDEO: Anthonys Notified | Bone Search
PHOTOS: Evidence Seized From Home | Remains Found
PHOTOS: Possible Caylee Sighting | More Pics
PHOTOS: Bone Search | Casey Baby Photos

---

The remains, a skull and clothing were found Thursday by a utility worker who was relieving himself in a wooded area less than a half-mile from George and Cindy Anthony's house on Hopespring Drive in east Orange County.

A worker is heard on the 911 call saying, "We've found a human skull."

"Oh my gosh," the operator said.

"I know, " the worker replied. "A skull of which we believe is human."

"What's the location?" the operator asked.

"It's right off of Suburban and Chickasaw in the Caylee Anthony area," the worker said.

"Oh," the operator said.

Caylee's mother, Casey Anthony, 22, was charged in October with first-degree murder, even though the toddler's body has not been found. She has insisted that she left the girl with a baby sitter in mid-June, but she didn't report Caylee missing until mid-July.

Remains Linked To Anthony Home

Meanwhile, the Anthonys returned home on Friday after not being allowed to enter while investigators executed a search warrant.

A medical examiner found evidence among the child's remains that link them to the Anthony home, Orange County Sheriff Keving Beary said on Friday, offering the strongest indication yet that the remains may be those of Caylee.

Beary said investigators searched the home late Thursday night into early Friday morning after the medical examiner found "some clues that came out of the remains" that "linked it to the house." He would not say what clues were found.

"We took some things out of the house that the forensic people are very interested in," he said.

Beary said his investigators and the FBI would work around the clock and through the weekend to identify the child.

Asked if he believed if the remains are Caylee's, Beary said: "I think it's a good possibility, but I have to wait seven to 14 days for the DNA analysis."

There are no other missing-child cases in the area.

"I say my prayers every day and one of them is to solve this case," said Beary, who is retiring in January. "I just hope that we solve the case on my watch."

Defense Motion Denied

Orange County Judge Stan Strickland denied a defense motion requesting that its experts observe the autopsy of the discovered remains.

Casey Anthony's attorney, Jose Baez, filed the emergency motion on Thursday shortly after the remains were found.

The state said it would agree to notify the defense when FBI agents and investigators complete the search of the wooded area, which could be completed by Friday night. Local 6 News reported that the defense may have to hire a security team to preserve the crime scene.

The hearing lasted about 30 minutes, and Casey Anthony was not in attendance.

Evidence Removed From Home

Crime scene detectives late Thursday night removed bags and boxes of evidence from the home after the discovery.

Investigators were seen removing seven large paper bags and four boxes of evidence. They also seized four vacuum cleaners and two pesticide tanks.

Detectives said they will continue to comb the area, which has been surrounded by crime tape.

"We'll be back out bright and early," Orange County sheriff's Sgt. John Allen said.

Earlier on Thursday, the girlfriend of Casey Anthony's brother, Lee Anthony, showed up at his parents' house but was escorted out. It is not known why she went into the home.

A Texas-based search team looking for Caylee had searched the area where the remains were found, but the wooded area was flooded at the time.

"I know it's going to take a few days to get a positive ID, but there's no other missing children in this area, let alone three-tenths of a mile from the home, so I have no doubts," EquuSearch leader Tim Miller said.

'Very Strong Lead'

Beary said on Thursday that the remains are "a very strong lead in solving the case" involving Caylee.

Beary confirmed that the skull of a child had been recovered. Deputies said it's too early to tell if the remains, which were later taken away in a medical examiner's van, are that of Caylee.

"We've had thousands of people who've got tremendous hearts who have come out and search for little Caylee, and this is a very tough situation for everybody that's been involved in this case, but this is probably a lead toward that closure," Beary said.

Local 6 News reporter Jessica D'Onofrio confirmed that the remains are likely that of a girl. D'Onofrio said the worker saw the bag, opened it, saw the remains of a child and called 911.

"Deputies did respond to that area, and once we were on the scene, we determined that we do have the remains of a young child. Obviously, our concern is that it's in close proximity to some recent activity in that part of the county, and it's incumbent upon us to determine what we have," said Orange County sheriff's spokesman Jim Solomons, referring to the Casey Anthony case.

The age and gender of the remains are not known.

"It would be inappropriate to speculate," Orange County sheriff's Capt. Angelo Nieves said. "Our investigators are on scene, evaluating and processing the situation. It's very early."

Leonard Padilla, a bounty hunter who initially bailed Casey Anthony out of jail and has searched for Caylee, said, "It's a bittersweet day."

"We drove by (the wooded area where the remains were found) dozens of times. We heard that there were searches going on in that area," Padilla said.

Cindy Anthony first called authorities in July to say she hadn't seen Caylee for a month and her daughter's car smelled like death.

Police immediately interviewed Casey Anthony and said that everything she told them about her Caylee's whereabouts was false.

Casey Anthony said she left Caylee with a baby sitter named Zenaida Gonzalez at an Orange County apartment complex, and the two were missing when she returned to pick up Caylee. Detectives said the baby sitter was nonexistent and the apartment where Anthony said she had last seen Caylee had been empty for months. Anthony also lied about where she worked, detectives said.

As the case unfolded, troubling details emerged. Photos of Anthony partying after her daughter went missing surfaced. Friends said she was a habitual liar, but they also said that she was a good mother.

Earlier this month, the Orange County state attorney turned over almost 800 pages of documents, which showed someone at the Anthony home had done Internet searches for terms like "neck breaking" and "household weapons."

In mid-March, someone used the Anthonys' home laptop to search Google and Wikipedia for peroxide, shovels, acetone, alcohol and chloroform. Traces of chloroform, which is used to induce unconsciousness and also a component of human decomposition, were found in the trunk of Casey Anthony's car during forensic testing, the documents said.

Orange County jail officials also released several hours of videotapes of visits between Casey Anthony and her family from July and August, when she was arrested on neglect and other counts but before she was charged with first-degree murder.

During the taped visits, Anthony's parents tell her they're trying hard to find the little girl. Anthony does not appear to add information to aid that search beyond her account that a baby sitter took the girl.

Last week, prosecutors announced they would not pursue the death penalty for Anthony, although that move could be reversed.

The Orange County State Attorney's Office said in a news release last week that "it is not in the best interest of the people of the state of Florida" to pursue the death penalty against Anthony.

Timeline Revisited

After the discovery of the remains, Local 6 News investigative reporter Tony Pipitone revisted cell phone records released in the Casey Anthony case to track her whereabouts.

Caylee was last seen June 16, the day George Anthony said he last saw his daughter and granddaughter together.

"Ten minutes to 1 (o'clock) that afternoon on the 16th is when I actually saw Casey and Caylee together -- both leaving with backpacks. My daughter said she was going to work, and she was taking Caylee to the nanny, to the babysitter," George Anthony said in a released police interview.

Investigators said they do not believe the baby sitter existed.

Seven hours later, Casey Anthony was seen on surveillance video renting a movie at a Blockbuster with her boyfriend, Tony Lazzaro, and Caylee was not with them.

Casey Anthony returned home on Tuesday, June 17 around 2:30 p.m. but went back toward Lazzaro's home less than three hours later, phone records show.

But June 17 was just one day after Caylee was last seen alive, and investigators believe that's when Caylee likely died, Pipitone reported.

Scientific evidence suggests that human remains that decomposed in the trunk of Casey Anthony's car were there for up to two-and-a-half days after death.

Pipitone said that fact may lead investigators to focus on Wednesday, June 18 to June 19.

A neighbor told investigators that Casey Anthony borrowed a shovel on June 18 and also backed her car into her grandparents' garage, which was unusual, the neighbor said.

Cell phone records show that Casey Anthony pinged a tower near her parents' home from around 2:30 p.m. to 3:30 p.m. on June 18, then her phone pinged along the Econ Trail, south of Lake Underhill.

The area between those two locations is the wooded area where the remains and skull of a child were located on Thursday, Pipitone reported.

Casey Anthony's phone pinged near her boyfriend's apartment before going silent at 6:57 p.m., records show, and did not ping another tower until 8:32 a.m. Thursday, June 19, also near his apartment.

It is not known where Casey Anthony was during that 13-hour span.

Experts Discuss Discovery Of Remains

Pipitone also discussed the finding with a former prosecutor and a defense attorney, and the impact the discovery could have on the Casey Anthony case.

"What does it do to the state's case now that there' s a body?" Pipitone asked former prosecutor Elizabeth Rahter.

"Oh, it hugely bolsters the case. A jury is always a little reluctant to convict because they don't want to convict an innocent person. Absolutely you would not want to do that. So now, there's going to be no doubt that she's dead," Rahter said.

Defense attorney Cheney Mason said claims made by Casey Anthony and Baez that Caylee was alive will now work against them at trial.

"Then all the talking, all the press interviews and the parents going on this show and that show and the lawyer going on different shows establishes they have no credibility whatsoever," Mason said.

The testing of the remains could be the key to the case.

"The most important thing is how did she die?" Mason said. "It could have been an accidental death -- and we've talked before -- an improper disposal, it could have been a brutal homicide. We don't know, and until the medical examiner is finished and renders a report, no one is going to know."

Rahter said an accidental death would be hard to believe.

"What would a reasonable person do in the case of an accident? Call 911 or call your parents or call a close friend. Do you go borrow a shovel from a neighbor, probably not?" Rahter said.

Mason said an insanity defense would be even more difficult to prove, Rahter said.

"It's really difficult to be not criminally responsible. You have to prove they know right from wrong and they understand the consequences of their actions. Obviously, Casey understood the consequences of her actions because she worked really hard to cover it up," Rahter said.

If the case plays out how many think, the experts agree on what will likely happen.

"You can pretty well predict there's going to be a life sentence, either a plea and get it over with or have a circus trial and then be convicted and get life," Mason said.

"Yeah," Rahter said.

Pretrial Hearing

Local 6 has confirmed that a motion for a change of venue has been prepared by Baez, but the motion has not yet been filed.

A pretrial hearing was held Thursday morning in the first-degree murder case, and Baez waived his client's right to a speedy trial, and the case was moved to the court's March docket. A status hearing was scheduled with a tentative date of Jan. 15. Anthony's trial had been scheduled to begin Jan. 5.

Anthony did not attend the hearing.

Watch Local 6 News for more on this story.