My heart is broken today to find out so late about the passing away of John. It feels like I lost one of my own. I had the great fortune of working with John on a project. He was and will remain one the best and kindest people in my life, patient, kind, supportive and always there to teach. I love him so much while he has left us, and it’s painful, I hope he lived a good life, and I can only pray for his soul to be in the eternal light and bliss, pray for his family. Alireza Moharrer