Russia searching for 'kidnapped' son of tycoon:
http://www.chinapost.com.tw/international/europe/2011/04/23/299755/Russia-searching.htm
1) Son still kidnapped for real
2) Call for Ransom was made
...If intruder was able to slip in and out of the Rs house - if there was one, he/she did not go thru the train room; no, and would have come in through some entrance somewhere. Even if it was a window, now that they are in, they can just leave out a door. And they would have known they did not have to worry about setting off an alarm, because they made it in successfully undetected. So why leave the victim in the house?
They also had to know where the Wine Cellar room was, and even to lock it with the wooden block thing.
Again, I think they would have done like in the above case - snatch the girl at an opportune time, leave the RN on her bed, or in an easily visible place, if at all, get to a controlled secret environment, then make the phone call....