Amber Alert issued in Mexico for missing Allentown girl, Amy Yu

PHILADELPHIA (WPVI) -- Mexican authorities have issued an Amber Alert for a missing Allentown teen and a 45-year-old man who signed her out of school, saying the pair is believed to be traveling through the country.

The alert posted to Twitter Thursday night says police believe 16-year-old Amy Yu and Kevin Esterly are in Mexico, and Amy may be in danger.

The two went missing March 5th, shortly after authorities were notified the pair may have been involved in a romantic relationship. Amy's family previously said the two met at church years ago, and Amy is friends with one of Esterly's four daughters.

School records show Esterly signed Amy out of school 10 times between Nov. 13 and Feb. 9. Police say Amy had changed school documents to list him as her stepfather.

In a criminal complaint filed with Allentown Police, Esterly's wife said he withdrew $4,000 from her bank account and that his car and personal documents were gone.

Police released more details on Friday, saying the pair flew out of Philadelphia International Airport, then to Dallas-Fort Worth, and finally to Cancun, Mexico.

"All information received thus far leads investigators that Amy Yu left Allentown willingly with Kevin Esterly," said Capt. Bill Lake of the Allentown police department.

Amy's brother, John, said the family considered Esterly to be a trusted friend, but now they not only want Amy back - they want Esterly in prison.

"She ran away, she went with this 45-year-old man, Kevin Esterly," he said.

Yu is about 4 feet 11 inches tall and 90 pounds, while Esterly is 5 feet 9 inches tall and 185 pounds, according to police.

Anyone who sees either of them is asked to call 911, local police or the Allentown Police at 610-437-7751.

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