In the weeks since Amy Yu disappeared, the 16-year-old's family has replayed eight years of warning signs about the intensifying relationship between the high school student and the 45-year-old father of four with whom she fled to Mexico.
Both are being returned to the US and a charge of interference with the custody of a child awaits Esterly's extradition.
Amy Yu was found in good health and unharmed.
- Saturday: Authorities in Mexico find Yu and Esterly at the Playa del Carmen resort near Cancun and arrest Esterly on suspicion of child custody interference.
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.
March 15: Amber Alert Mexico issues a public bulletin that Esterly and Yu may be traveling in Mexico, and that Yu "may be a victim of crime".
Her mother said she came home and discovered Amy's passport missing along with some cash.
Yu along with Kevin Esterly, 45, have been missing since March 5, and when the girl did not return home from school that night, her mother reported her missing, the Allentown Police Department said. Yu may have added Esterly to her school emergency contact so he could check her out of school. An extradition process will begin once Esterly arrives in Miami, reports said. Those who are at least 16 can legally consent to sexual activity, the group said, as long as the other person doesn't have authority over them. Yu had listed Esterly as her stepfather on school records without informing her parents, according to authorities.
The Philadelphia TV station says police have told Amy's family that she has been located.
Amy has been safely returned to her family in Pennsylvania, according to a statement from Immigration and Customs Enforcement (ICE) and Homeland Security investigators.
The case has made headlines in the Lehigh Valley and beyond.
As details about the relationship trickled out, there were fights over phones that contained a troubling electronic trail.
Yu's mother then told the school that she's a single mother and school workers called police, Hammer said.
Amy was last seen by her brother, John, who said she fled after being dropped off with him by their mother at their school bus stop.
It is not clear if she found them before or after they went missing together. They have even had Esterly over for dinner.