>> reporter: those are really good questions and we're putting the pieces together based on what we're hearing from her agent and from russian authorities. from what we can tell, she passed through a security check point at the airport sometime in the month of february. it looks like it has been about three weeks since that happened. since that time has been in custody under investigation for trafficking drugs into the country. now, her agent, her family, all of those associated with her and her team say that she is beloved and they are deeply concerned about her health and mental well-being and the safety of her concern. they are very much concerned, monitoring her situation and hoping to find a slags to expedite her return. where she is being held and exactly how long is still a question we don't have an answer to. we know that she's under investigation. we know roughly what happened at that check point because of the video that was released by