In Memoriam: Ivan Mercado

Although I barely know any of you yet, in a sense we are all part of a community -a UCSC community and the community of people who teach physics and study physics at UCSC. It is with great sadness that I learned that Ivan Mercado, a member of our community and a close friend to many of you, passed away tragically and unexpectedly last weekend. Please feel free to share comments, thoughts and feelings related to Ivan here.