sorry to see, but not unexpected. I have read stories about how the international adoption thing is really just a best guess at best when it comes to temperment / mental health history of the child. some agencies, have been known to cover up issues, in an attempt to get kids out of the system. Although it is criminal to abandon, she didn't kill the child. i wonder about the health care of the kid while here in the states.
i have a good friend who has a grown son who throughout his life has had major mental health issues...major...and God bless her, I don't know how she dealt with him all the years without the help of her then husband. To be honest, I know I wouldn't have been able to handle it, even with a willing husband.
but I do have to wonder what in the hell she was thinking hiring a stranger through some kind of ad to pick up the boy and safely deliver him to Russian authorities??? she was obviously desperate...but her mental health should also be looked at more closely and she should have her file flagged for future adoptions, including pets.