now, wolf, that putin has created a proxy force in the eastern ukraine which he can't control. he's armed it, sent trainers in, he's obviously sending money in. the evidence is very good in a situation like this. the question is will he give up eastern ukraine or will he continue to fight on. it's unknown now. >> pamela, you've been reporting about the fbi agents who are heading to the scene. what doctor you learned? >> wolf, we've learned that two fbi agents, a general investigator and a forensic expert are en route to kiev, ukraine right now. they're going to stay under the umbrella of the u.s. embassy and wait for more direction. the big concern is safe passage to that crime scene which is in a disputed territory. it's a hostile environment. we learned early today that some european investigators experienced it firsthand.