It is with heavy hearts that we regret to inform you all that our friend Alvin Roehr passed away suddenly on March 10, 2016, only a few weeks after we had the honor of interviewing him.  Though we are deeply saddened with this news, we are also proud to have called him our friend.  We have one more incredible angel to watch over us.  One last salute to you, Alvin, may you rest easy with your crew mates up in the clouds.