ORLANDO, Fla. -- Casey Anthony’s attorney declined Thursday morning to predict whether she will be indicted on a homicide charge when a grand jury meets next week.

“I’m not a fortune teller,” Jose Baez said on NBC-TV’s "Today" show. “We’ve been preparing for the worst and hoping for the best.”

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Baez again criticized prosecutors, saying they were trying Anthony in the media and “tainting the jury pool.”

Anthony’s 3-year-old daughter Caylee has not been seen since June. She is charged at this time with child neglect and filing a false report to law enforcement.

But sources said on Wednesday that prosecutors will take evidence to a grand jury in Orlando on Tuesday and seek a homicide charge.

Baez said Anthony will not testify before the grand jury, which he said was “a one-sided affair” that is held in secret in which only prosecutors present evidence.

When asked why Anthony has not opened up more about the case, Baez said people are assuming she knows where Caylee is “and she doesn’t.”

Anthony is expected in court on Friday to hear several motions that Baez filed, including one to allow her to visit places where she can help to find Caylee without the media’s knowledge.

Baez said today that this is important to preparing Anthony’s defense.

Investigators at the Orange County Sheriff's Office said on Wednesday that they believe they can prove Casey Anthony killed Caylee.

A top investigator who will testify before a grand jury next week told WESH 2 News reporter Bob Kealing that, "we don't have a smoking gun."

On the downside, the investigator said there's no body, crime scene, confession or a witness to tell jurors what happened to the missing toddler.

"We're very comfortable with what we have uncovered," a top investigator said, and he called this prosecution, "absolutely the big puzzle ... the totality of everything."

Prosecutors will piece together inconsistencies from interviews that Anthony gave to police and the things she told her family and friends.

They will present evidence from Anthony's car, the air inside, hair and a stain in the trunk. It's forensic evidence that investigators said previously has led them to believe Caylee is likely dead and her body was in the trunk.

Investigators said they plan to present evidence that Anthony had been doing computer searches for chloroform, and the air in the car was saturated with the solvent.

The top investigator said they'll ask a grand jury what it looks like to them, and he said it all leads, "to one logical conclusion ... we're going to be able to convict."

To comment on this story, send an e-mail to Bob Kealing.