Now we are having a good discussion. All valid points. I like the thought of taking Olivia versus a 'regular person' to challenge the whole "Authority" aspect of the episode. That is a great point.
I don't know though between the clips and the episode stills, I think him taking her is something that just happens and then uses to his advantage. In any event it will be interesting to see how Elliot deals with him. We already know what he will do to suspects to find missing people (Scavenger), let's see how he handles it when it's someone who is of personal interest.