Missing American teenage girl is finally found in Mexico. 45-year-old man arrested

A teenage girl went missing in Pennsylvania at the beginning of this month. An Amber Alert was eventually issued for the missing girl after 12 days.

According to UPI, Amy Yu went missing with an older man on March 5, 2018. She has finally been found and the man who left with her has been arrested and is facing charges.

Amy Yu, 16, was returned home this past Sunday after being found with Kevin Esterly, 45, in Mexico. According to WFMZ, Yu was transported to Allentown after arriving at the Philadelphia Airport early on Sunday.

Esterly was arrested and is awaiting processing in Miami, Fla. Mexico issued an Amber Alert for Yu on Friday after police said she was last seen with Esterly on March 5.

Investigators said that before the two disappeared together, they may have maintained a secret relationship together. The man had signed the teenager out of her high school 10 times since November without her parents' permission.

Police also revealed that Yu may have listed him as her stepfather on her school emergency contact list. Esterly was told by police last month to stay away from the girl after her mother, Miu Luu, learned he had been signing her out of school.

According to The Morning Call, US Immigration and Customs Enforcement along with the US Marshals Service and a Mexican law enforcement agency found Yu and Esterly at Playa del Carmen. This is a resort town in the Mexican state of Quintana Roo.

"Esterly was placed into custody by Mexican authorities. Amy is unharmed and in good health."

Allentown police, UPI, March 18, 2018

It’s been reported that the teenager had willingly met up with Esterly, who took her to Philadelphia International Airport for a one-way flight to Mexico. She failed to board her school bus alerting her parents.

Both of them were carrying money that was stolen from their families. A criminal complaint filed by Esterly's wife, Stacey Esterly, said he had withdrawn $4,000 from her bank account before his disappearance.

Stacey and their four daughters have known Yu since she was about 7-years-old. She often accompanied the family on vacations, according to attorney John Waldron.

Stacey said she and her husband had been fighting about the nature of his relationship with Yu for several months. Waldron shared that Esterly had stated that he was attempting to be Yu’s father figure.

"Stacey did not believe it to be merely a father-daughter relationship and that's why there were fights. They were fighting every day over Amy," the attorney added.

Esterly is scheduled to be arraigned on the felony charge of interference of the custody of a child upon returning to Allentown.