This makes me very sad. Patrick H. Winston was a brilliant man and a very nice person. He was my student advisor at MIT and agreed to serve on the advisory board of a startup company I founded. I had the privilege of meeting him again at his lab a few years back. He was still doing leading edge research and had tremendous enthusiasm for his work and his students. He will definitely be missed.
You have been extremely lucky. I only had him for 6.034 and the overall encouragement he gave me and so many other students. Solving death simply must be a higher priority.