If anybody can get anywhere, it must be Astakhov.
Would you enlighten us non-Russian-readers and tell us whether there is perhaps an American father, living in Illinois, in the picture?
I got more details on the case from another article:
http://www.vz.ru/society/2016/6/4/814383.html
Olga P. is divorced. Father is not specified in the girl's birth certificate.
Olga P. was arrested in the airport of Chicago upon arrival. She's been thrown into prison together with murderers, where she lost conciousness several times. She's been also equipped with GPS transmitter bracelet, so that she would not attempt to return to Russia.
She may be sentenced to life in prison for "abducting a person". Her ex-husband Horte Castillion filed the abduction report, saying that she didn't ask his permission to take her daughter to Russia. Castillio and Olga married in USA. the daughter was less than a year old back then. They divorced 1.5 years after. She says that if the man wanted to accept/acknowledge his daughter, he could have done that in Russia as well, but then he'd be forced to pay alimony. She sees it as his revenge on her.
Her daughter, the Russian citizen has been living in Russia with her grandparents for 2 years. The Illinois judge demand that the girl be sent to USA. However, the Russian Constitution prohibits extradition of an under-age Russian citizen to another country.
Russia has sent a note of protest to the US. State Department and is giving Olga P. legal assistance.