More info in this article and some new info to boot:
"
He and his family had known Y. since she was about seven years old, meeting at church about eight or nine years ago, according to attorney John Waldron, representing Esterly’s wife Stacey. Y. lived in Allentown with her mother and younger brother and had been apart from her father, who lives in China, since she was a child, her mother said.
As Y. grew older, the Esterlys often included Y. on vacations with his wife and daughters, almost treating her like a “fifth daughter.” Y. eventually became best friends with Esterly’s eldest daughter, he said...
“Thing is there were fights all the time because Kevin didn’t have time for Stacey or his own children,” he said. “It was a constant struggle..."
“He couldn’t help himself, he couldn’t stop.”
Waldron said Esterly lost his job over his obsession with Y. and had been unemployed for a month.
-
http://www.mcall.com/news/breaking/...u-missing-news-conference-20180316-story.html