Vladimir, I'm sure you and your family have considered that she is just running away from the responsibility of marriage. The timing of her disappearance leads me to believe you have very good chances that this is the case, as do other details, such as the fact that she studied crime and possibly has some "skills" at eluding capture for that reason.
It sounds like she has been living someone else's life, model student, going to Yale, etc., and this kind of person could easily make a mad dash for freedom at some point. Do you have strict Asian parents? I grew up around many of these kids who run themselves ragged to please their parents, who are never satisfied.
"Friends say she's very hard working, reliable, respectable and has many achievements and accomplishments in her field." Yep. This is telltale. If there is ANY Catholicism in her blood the way there is in yours, this kind of synthetic life could not please her deeper nature. I think she just freaked out and had an early midlife crisis.
I'll pray that she hasn't come to harm, and that any day she will turn up. Perhaps this experience will even make her listen to you and lead to her conversion. Again, I think you have much reason for hope.
Sorry if this sounds impersonal, I am a lawyer's son. Be assured that I will pray for her!