Forget all the sad deaths of 2016, 2017 has already seen the death of Derek Parfit.
The Times' obituary here is a good place to find out why you should care about Parfit. (He cared about you, but I don't think he would consider that a sufficient reason for you to care about him.) This is the New Yorker's profile of him. It is a tour de force, certainly, but it left me with not quite a bad taste but a funny taste in my mouth. One can imagine Bernard Williams laughing out loud at it.
If you have not read Reasons and Persons then you are missing - I was going to say "a treat", but that would be quite wrong - an intellectual feast.