Search for Zahra Baker: A Break in the Case?

VIDEO: Search for Zahra Baker: Community Speaks
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Police searching for a missing 10-year-old North Carolina girl said Saturday that Zahra Baker was seen three weeks ago, nearly two weeks after the previous confirmed public sighting of the child.

A statement released by the Hickory, N.C., Police Department only said that Zahra, who was reported missing on Oct. 9, was seen in public on Sept. 25, but a furniture store manager told reporters that the girl was there with her stepmother.

Police had put out a request for anyone who had seen little Zahra, whose bone cancer left her with hearing aids and a prosthetic leg, any time over the past month to come forward.

They have said that not knowing where the girl had been before her disappearance has made it more difficult to narrow where they should search for the her, because investigators have said they don't believe the story given by her father and stepmother.

On the date given by police yesterday, Zahra and her stepmother, Elisa Baker, visited a Hickory furniture store, Pat Adams, the store's manager told a local television station and The Associated Press.

"They had come in and the little girl, Zahra, was standing in the aisleway at a children's room and we have cartoons playing in there and she was just standing there in the middle of the aisle looking into the TV room, watching the cartoon," Adams told the AP. "As I walked past her, I put my hand on her shoulder and said 'Excuse me, sweetheart,' and she looked up at me and smiled."

Adams told the AP that other employees were talking about the little girl's prosthetic leg.

"We were just wondering what had happened," said Adams, whose account was first reported by WCNC-TV in Charlotte.

Investigators searching for the body of Zahra Baker have had to continually expand their search after previous efforts turned up little.

"It's a science," said Ernie Allen, president and CEO of the National Center for Missing and Exploited Children.

"They've searched kind of the obvious places nearby," he said. "The approach in cases like this would be to expand the radius."

Hickory police, aided by teams from area sheriff's offices and NCMEC's Adam Team, which deploys specialized search units, have already combed through the family's home, the wooded areas nearby and the property where the 10-year-old's father worked.

Friday, Hickory police removed three pieces of bedroom furniture -- including a bed frame, mattress and box springs -- from the house where Zahra lived with her parents, according to the Hickory Record newspaper. Police also carried out two bags of evidence.

Neither area police nor sheriff's offices returned calls seeking comment yesterday to ABC News.

Allen said those searches and the expanded efforts are all based on a profile of the family and Zahra herself -- where they went, who they talked to, what they liked to do.

And in a case like Zahra's, where police aren't sure exactly when she may have been killed, finding "where was the child last seen alive" can pose difficulties.

"Basically, what you're doing is ruling things out," he said.

And "you always hope you are wrong," said Allen. "You hope you don't find a body."

The search for Zahra, who had lost her hearing and left leg to cancer, was reclassified Tuesday as a homicide investigation.

Zahra's stepmother, Elisa Baker, was jailed on a felony obstruction of justice charge the same day. Baker was already in custody, having been arrested over the weekend on several charges unrelated to her stepdaughter's disappearance.

Though police said she admitted Tuesday to writing a ransom note after demanding $1 million, she has since denied she had anything to do with Zahra's disappearance.

In many of the high-profile missing children's cases, such as Chelsea King's or Elizabeth Smart's, the family becomes an ally to authorities.

That's not necessarily the case in Zahra Baker's.

Though Hickory police have told local media that Zahra's father, Adam Baker, had cooperated he still remains an unofficial suspect for some, along with his wife.

But, Allen noted, "you always look at those closest to the child first."

In an interview with The Associated Press, Baker said he was unsure if his wife was involved in the disappearance. "I'm still trying to figure it all out ... I just want to find her."

Reports of Abuse Surface After Zahra Baker Disappears

Since news of Zahra's case went public, neighbors and one relative have come forward to say Elisa Baker had abused the little girl, prompting cries in the North Carolina community for better protection and reporting of suspected abuse.

"I think there was more behind closed doors than what anybody knew," neighbor Kayla Rotenberry told ABC News. "There was once an incident where Zahra's stepmother was whooping Zahra, and she broke her hand on her prosthetic leg. She said when she was whooping her, she hit that youngin's leg and broke her hand."

The Hickory Record newspaper reported that police there have gotten more than 100 leads from the public and are relying on those tips as well as systematic searches of properties frequented by those who were close to the little girl.

Dogs have been deployed not only in Catawba County, where Hickory is located, but also in nearby Caldwell and Burke counties, the Record reported.

Police have also combed through woods, fields and poured through the family's computers and phone records.

Dogs have found the "presence of human remains" in both of the Bakers' cars, police have said, and "possible blood" was found in one.

ABC News' Yunji de Nies contributed to this story.