Convicted murderer Scott Peterson is writing the Florida woman accused of killing her missing toddler, according to a report in the Orlando Sentinel.

Sources tell the paper that the California death-row inmate has been writing Casey Anthony in the Orange County Jail. Peterson was convicted three years ago of killing his wife, Laci, and unborn son, though he maintains his innocence.

On Tuesday, Casey Anthony entered a not guilty plea to charges she murdered her daughter, Caylee, who has been missing since mid-June. The 22-year-old Orlando resident is also charged with aggravated manslaughter, aggravated child abuse and four counts of lying to investigators. She's due to stand trial on Jan. 5, 2009.

A spokesman for Anthony's lawyer told the Sentinel that she has not been corresponding with Peterson, but declined to say who might be writing her.

A jail spokesman told the paper that inmate correspondence is not public record.

Jail officials told MyFOXOrlando.com that no record of communication between Anthony and Peterson exists.

"We have no knowledge of any communications between Orange County Inmate Casey Anthony and California Inmate Scott Peterson. There is no public record which would reflect or confirm such communications," a statement released by Orange County Jail officials read.

"All mail coming into the Orange County Jail System is screened for contraband, money, and other security-related issues. Policy forbids Orange County inmates from writing each other, but there is no prohibition against writing or receiving mail from inmates in other correctional institutions," the statement continued.

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If convicted at her trial, Anthony could face life in prison or the death penalty.

The State Attorney's Office also said it still will not comment on whether capital punishment will be sought, in part because it doesn't want to generate the type of publicity that would require a change of venue for the trial. The case has already created a media frenzy for months.

"Remember, these charges are only allegations and do not constitute a proof of guilt," prosecutors said. "Ms. Anthony has the right to a trial by jury and is cloaked with the presumption of innocence."

Anthony told authorities she had left her daughter with a baby sitter in June and the two were gone when she returned from work. She says she spent the next month trying to find her daughter and didn't call authorities because she was scared.

Investigators say little that Anthony has told them has proven to be true. The apartment where she said she dropped her daughter off had been vacant for months, and she also lied when she told them she had been working at an area theme park as a photographer, according to police.

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