ORLANDO, Fla. -- The state is seeking homicide charges against Casey Anthony in connection to the disappearance of her missing 3-year-old daughter Caylee, Local 6 News reported.

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NEW IMAGES: Surveillance Photos Of Casey Anthony
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The State Attorney's Office is planning on presenting its case to a grand jury on Tuesday, according to Local 6 News. The grand jury will then decide if prosecutors have enough evidence to charge Anthony, the report said.

It is not known if it will be a murder or manslaughter charge, Local 6 reported.

Caylee was last seen in mid-June but was not reported missing until mid-July. Even with no body, the state plans to charge Anthony in connection with the death of her child.

Orange County sheriff's investigators -- and Sheriff Kevin Beary -- said they believe Caylee is dead.

Anthony was recently named a suspect in her daughter's disappearance after evidence allegedly showed a dead body was inside Anthony's car.

Air samples taken from the trunk of the car indicated a dead body was present, investigators said. Cadaver dogs also alerted on the car, according to investigators.

In addition, FBI results showed that a hair sample taken from the trunk of the car likely belonged to Caylee, Local 6 News reported. High levels of chloroform were also found inside the trunk, according to the report.

Anthony was previously charged with child neglect in her daughter's disappearance.

New Video, Documents Released

Newly released surveillance videos show Casey Anthony shopping at different Central Florida stores using stolen checks, according to investigators.

Authorities said the video and photos, which were released on Wednesday, prove Casey Anthony is a thief, Local 6 reported.

Investigators said Casey Anthony used stolen checks from her one-time best friend Amy Huizenga, and then spent the money in stores including Target.

Copies of checks Anthony allegedly wrote were also released Wednesday, including one check on which Anthony apparently signed her own name.

When Casey Anthony was initially arrested on charges of child neglect, she was videotaped wearing a blue hoodie with the number 82 on it.

On surveillance video, Anthony can be seen buying the same blue-hoodie outfit at a Target store located on Alafaya Trail. Investigators said she made the purchase using a stolen check.

According to sheriff's deputies, Anthony stole Huizenga's checkbook while she was out of the country on vacation and then illegally went to at least four stores.

Prosecutors said Anthony stole more than $1,300 from Huizenga.

Anthony apparently made grocery and clothing purchases during a time in mid-July -- after Caylee had been missing for more than a month and when Casey Anthony was living with her boyfriend.

In addition to using Huizenga's checks to buy items, prosecutors said Anthony also cashed a check at a Bank of America where surveillance cameras captured her at a teller window.

Anthony allegedly wrote a check to herself for $250, Local 6 reported. Prosecutors said Anthony forged Huizenga's signature on the bottom of a check.

Also, on one of the checks Anthony allegedly spent in a Central Florida Target store, she signed "Casey Anthony" on the bottom of Huizenga's check, Local 6 reported.

In addition to five paper checks, detectives said Anthony wrote an electronic check to AT&T for $574.

If Anthony is convicted of all 13 check fraud charges, she could be sentenced up to 65 years in prison, Local 6 reported.

New Motion Filed

Meanwhile, Anthony's attorney, Jose Baez, filed a new motion wanting evidence that may be favorable to his client.

The motion requests a list of any promises the state has made to any witnesses and any fees witnesses may be paid.

It also requests any information investigators have discovered that could be used to Anthony's disadvantage.

There have been several reported sightings of missing 3-year-old Caylee.

Baez has requested reports from any law enforcement agency that has investigated the tops.

A national search for Caylee continues.

Watch Local 6 News for more on this story.