Casey Anthony

Casey Anthony is a free woman after being released from jail early Sunday.

Anthony, 25, was met with hundreds of protesters calling her a "baby killer" as she walked out of the front door of the Orange County Booking and Release Center in Orlando, Fla., at 12:14 a.m. On her way out, she was given $537.68 (the remaining amount in her inmate account) and received a police escort into a gray SUV.

Casey Anthony found not guilty of killing daughter

"She had a look of relief on her face," Tony Zumbado, a photographer selected by the jail to witness her release, told People. "There was a smile on her face. She looked glad to be out of there."

Anthony was acquitted of killing her 2-year-old daughter, Caylee, on July 5, but was sentenced to four years in jail for giving false information to law enforcement officials. Anthony was given credit for good behavior and time served — she had already spent 997 days in jail.