It's frightening and saddening. Not so much because this mammal and other species have now become extinct because of human malice or hunter's pride, but because we common people, many of whom think dearly of wildlife, do so much to make such things happen--often without realising it.
Consumerism in the Western and now also Eastern world and its attendant exploitation of any available resources is not only going to do away with many species that we would regard as noble and beautiful, it will ultimately also spell our own demise, if unchanged.
It may sound whimsical, but here are my two cents. If we all took a good hard look as to whether we really need a new mobile phone or stereo (which contain copper and other metals whose mining destroys many many habitats), stuff ourselves (and our arteries) with soya-raised beef, or forgo a stroll for a trip round the block in a gas-guzzling car, perhaps it'll make for a future to look forward to, not to fear. Just a thought apropos of a now dead close relative.