ORLANDO, Fla. -- Prosecutors in the Casey Anthony case on Thursday deposed the girlfriend of Anthony's brother.

Mallory Parker, the girlfriend of Lee Anthony, was deposed, but it's not known what questions she was specifically asked.

"Today's deposition was conducted by the State Attorney's Office. I was just here as Casey Anthony's representative," attorney Jose Baez said.

Casey Anthony, 23, remains jailed on first-degree murder charges in the death of her daughter, Caylee, whose remains were found in December. Caylee was 2 years old when she was reported missing in July 2008. Casey Anthony has pleaded not guilty.

Parker, 25, has been dating Lee Anthony since before Caylee's disappearance, and she has been at the Anthony family home during several events that occurred there.

Lee Anthony said he intentionally kept Parker away from the family's home during the first few hectic days after Caylee was reported missing, but Parker was the first person to arrive at the Anthony's home the morning Caylee's body was found. Parker was taking care of the family's dog while grandparents George and Cindy Anthony were in California for a "Larry King" taping. She was barred from entering the home because it had become a potential crime scene.

Local 6 reporter Mike DeForest said it is likely the defense asked her about that, as well as her communications with Casey Anthony during the weeks after Caylee was last seen alive. Although Casey Anthony had told her family she was on a business trip, we now know she was partying in Orlando-area bars and clubs.

Detectives never formally interviewed Parker.

Casey Anthony's defense team next week will depose Roy Kronk, the former Orange County meter reader who discovered Caylee's remains near the Anthony family home.

Watch Local 6 News for more on this story.