Many backgammon players call Las Vegas their home. If you have a friend or loved one there, you may check on their status on Facebook here: https://www.facebook.com/safetycheck/the-violent-incident-in-las-vegas-nevada-oct01-2017/about
So far I have heard that Falafel is safe. We are waiting to hear about others including Howard Markowitz and Paul Magriel. I will update this post as information comes in; you may also provide updates in the comments.
Our hearts go out to the people of Las Vegas.