Lehigh Valley

Dept. of Homeland Security now involved in Yu, Esterly case

ALLENTOWN, Pa. - The Department of Homeland Security is now involved in the mysterious disappearance of a 16-year-old Allentown girl and a 45-year-old man believed to be with her.

Amy Yu was last seen in Allentown a week ago and is believed to be with Kevin Esterly, the father of one her friends.

Allentown Police issued a brief update Monday saying the two are believed to be together and are aware that authorities are looking for them.

69 News spoke to people who know both Yu and Esterly and they say there were no red flags and they're now shocked by what has happened.

The search for Yu and Esterly is now in its seventh day. Investigators believe the pair is traveling together after Yu disappeared from her bus stop in Allentown on Monday, the same day Esterly withdrew about $4,000 dollars from his wife's bank account. 

Yu and Esterly are allegedly in a secret relationship. Police say the two exchanged hundreds of text messages which Amy's mom describes as if she was talking to her boyfriend. But the relationship started when their families met at church. Yu then became friends with Esterly's oldest daughter.

Amy's younger brother, who was with her at the bus stop before she vanished, says Esterly had him fooled.

"Now I think that he's a very bad guy and Amy's not hanging out with the right person," said John Yu.

Social media accounts reveal Yu even went on several vacations with the Esterly family.

Police say between November and February, Esterly signed Yu out of school for early dismissals ten times without her mother's consent.  At some point the teen even changed her emergency contact form at school, listing Esterly as her "stepfather."  Yu's mother found out about the sign-outs and reportedly called police on Feb. 9, telling officers Esterly took her child out of Lehigh Valley Academy earlier that day.

Court records show on the following day, Feb. 10, police were called to the Esterly's home in Orefield where Esterly and his wife, Stacey, got into a fight. The arrest report describes the incident as having something to do with Esterly preventing his wife from viewing his Facebook page. They were both charged with harassment.

Investigators say it doesn't appear Amy was taken against her will but there is a warrant out for Esterly's arrest.​

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