I completely understand why you are upset. However, here is one way you can look at this situation: this event is maybe Yauch's final, perfect parting gift to you. You are being presented with the perfect opportunity to examine
"the four noble truths" of Buddhism - the first two in particular (well, one has to start at the start, after all). Take some time and think about it. I'm not suggesting you become a practicing Buddhist (unless you really feel drawn to do that) or that contemplating this will necessarily make you 'feel better', only that a bit of introspection on what's happened and why (and curiously, why
now) might fuel some degree of personal, spiritual growth.
Just throwing that out there.