"We're very familiar with [Wanda Sue Larson]," Cathey told CNN. "My agents have worked with her often. She handles a lot of the social services cases out here throughout all of Union County. We're shocked."
When asked about Larson's arrest, Brett Vines, public information officer for Union County, told HLN, "We can't comment as the incident is under investigation."
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The boy on the porch appears to be the only one of the children to be neglected, said Cathey. "The five children all will undergo medical evaluations to determine if they were mistreated."
"The 11-year-old, we believe, had been handcuffed there in the morning time," the sheriff said. "We learned that this particular child is handcuffed pretty regularly. It's unclear if the other children received similar discipline."
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The child was secured to the front porch at the ankle by what appeared to be a pair of handcuffs, according to the Union County Sheriff's Office. A dead chicken hung around his neck.
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The four adopted children were found to be in good condition, said sheriff's Capt. Ronnie Whitaker. Two are siblings. The boy on the porch is not related to the others, officials said.
All of the children are home schooled, authorities said. Cathey said Harper and Larson claim to be married, but that has not been confirmed.
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Authorities have no previous records of calls to the home, according to Whitaker.
http://www.hlntv.com/article/2013/11/16/dead-chicken-porch-social-worker-arrested-child-abuse