Almost two weeks after a 16-year-old Pennsylvania girl vanished with a 45-year-old man, the pair was found Saturday in Mexico and the man was arrested, authorities say.
Stacey and Kevin Esterly repeatedly fought over Yu, including in front of her and the couple's children, when the wife believed the man's relationship with the teen had become inappropriate, WFMZ reports.
The pair was located in Playa del Carmen yesterday and are being returned to the US.
But Mrs. Esterly says in the last 8 months, her intuition told her the relationship had turned into something more - that he neglected his 4 daughters and lost a job over the relationship with Yu, according to Waldron.
The two have been missing since March 5.
Mexican authorities issued an Amber Alert in the case on Thursday.
February 2018: By now, Kevin Esterly, 45, who has a family home in Lowhill Township, has rented an apartment near 14th and Hamilton streets in Allentown, less than four blocks from 16-year-old Amy Yu's home. An Amber alert and an global search ensued, and the pair returned to the United States under vastly different circumstances on Saturday.
The attorney for Esterly's wife reportedly said she has retained the services of a divorce lawyer and believes Kevin Esterly is not in a mentally stable state.More news: Romelu Lukaku clarifies 'hiding' comments after Champions League exit
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They had them over for dinner at least once and Yu's brother said it seemed the man wanted to help his sister.
"For two weeks, I've had trouble sleeping and eating", Luu told The Morning Call. He tried to convince his wife, Stacey Esterly, that the pair's relationship was a father-and-daughter one, being as Yu's father has lived in China sine she was a child.
Luu said she had discovered text messages between Esterly and her daughter on Amy's phone, which appeared to show they were in a romantic relationship.
Amy has been safely returned to her family in Pennsylvania, according to a statement from Immigration and Customs Enforcement (ICE) and Homeland Security investigators.
A passenger on a Cancun-bound flight told CNN he was "close to 100% certain" he saw Esterly and Amy boarding the plane with him at Philadelphia International Airport on March 5. The Morning Call reports Esterly and Yu flew to Mexico with money allegedly stolen from both their families. "Can you come back?"
Both were smiling as they were taken into custody - Kevin in handcuffs, Amy in a auto.
The Allentown Police Department does not have a timeline for Esterly's extradition.
"It seemed odd the way she was leaning up against him and how he was rubbing her leg and it seemed like his hand was quivering a little bit", Castrovinci said.