Casey Anthony, the mother of missing Florida toddler Caylee Anthony, has been released from jail.
Casey had been held on multiple charges including child neglect, lying to investigators, petty theft and use of a forged check, but hasn't been charged in conjunction with her daughter's disappearance.
Authorities have been searching for Caylee Anthony since they were notified of her disappearance in July, nearly a month after she went missing.
On Sept. 1, the Orange County Sheriff's Office issued a statement saying that based on evidence that isn't yet public and FBI tests, it believes "there is a strong probability that Caylee [Anthony] is deceased."
Bond was posted by two local bail bondsmen. One of them, Joe Von Waldner, told ABCNews.com Thursday that he was working on behalf of a surety company which he declined to name, and that he was also working with MacDonald Bail Bonds, which declined to comment.
Anthony's attorney said an individual donor who wants to remain anonymous paid the $50-thousand dollars for the bond, "because of the belief that Ms. Anthony's constitutional rights have been grossly violated."
The case is full of well-documented twists, but new insights and new questions remain. Intimate, never-before-seen pictures and home videos of the girl and her young mother offer a rare window into Caylee's life.
Caylee lived with her grandparents and her 22-year-old mother, Casey in the comfortable Lee Vista section of suburban Orlando, Fla. Caylee's grandparents say the bizarre developments in the case have stolen attention from the toddler at the center of the mystery.
"This is our granddaughter," George Anthony, a former Ohio deputy sheriff, told "20/20." "I miss those little things that she did day in and day out with me. I miss that."
"I want my granddaughter back," said Cindy Anthony. "We live, breathe all day long. ... What are we going to do? What are we going to do if we don't find her soon, because all of our hearts are breaking every day."
"The person at the heart of this is Caylee, and she's kind of lost in the story, because really she's not a central character anymore," said Walter Pacheco, who has covered the story for the Orlando Sentinel. "It's an unusual case, because it's taken on a life of its own."
On Aug. 9, Caylee's third birthday came and went with no sign of the missing child, and on Aug. 17, the arrival of a Californian named Leonard Padilla added to the intrigue. A veteran bounty hunter with his own reality show, Padilla claimed he'd been contacted by Casey and would post her bond.
"You have this young mother, you have her family," Pacheco said. "You've got a bounty hunter wearing a cowboy hat that is now in the game. There are psychics posting blogs about where they think the little girl is. And then, you know, you have media trucks parked out there every day. It's a very, very strange case."
Pacheco said the Anthonys seemed like any other happy American family, but closer examination revealed "complete chaos."
"And it's chaos that's been going on for years," he said. "They've had a history of just odd things."
Among those oddities, Pacheco said, is the fact that Caylee's birth certificate doesn't list her father's name.
"She [Casey] never really told [her family] who the father was," Pacheco said. "She did say the dad died in a car accident. And we haven't been able to find out who that was yet."