It looks like a Gerry Anderson set, Thunderbirds are GO..

I think having access to translators would be great. However, prior to this, no one seems to have made any effort at non verbal communication. If anyone had made an effort to get him to show passport and ticket, then security would have had a wealth of information to help resolve the situation (like the fact that he was Polish not Russian). I would hope that at least one out five readers would attempt to help someone obviously lost and requiring assistance if they were standing in their place of work for over an hour.
My deepest sympathy goes out to the mother and I only hope that some good can come out of this tragedy, even it is only for staff and security to start treating passengers like human beings again, instead of potential bombs.