So, they received political asylum; and then returned? Makes no sense. The whole point of asylum is that you must convince the US that you are in danger in your own country.<quoted text>Ahem, capitol Carol, not capital.
Russia was interested in the guy because he went back and forth a couple of times and may have been in contact with an undesirable or two during his visits. Russia does a much better job of tracking "visitors" that the US does__A. they have far fewer to track and B. the Tsarnaeva's had hauled ass to the US years earlier some of them seeking "political" asylum.
If they were part of a larger group, I hope the one caught alive is kept under guard 24/7; before the Russians kill him. Like they did Litvinyenko in London.