Hello, and please accept my sincere condolences. I worked with Ian at Thinc Design, and remember clearly when he joined our project team at a critical and stressful time. He immediately assumed a great deal of responsibility and provided solid guidance, and did so with grace and a very even keel. Once the (successful) dust settled, I also got to know what a kind, interesting, and funny person he is. I'm so sorry and saddened by this news. If your family ever visits the National September 11th Memorial Museum, please know Ian played a key role in the exhibits there – helping our design team, and contributing to the ongoing experiences of millions of visitors that pay tribute there every year.