If you have already clicked the link and have the post appearing on your timeline, delete it immediately so your friends won't be misled too. After that, go to your Account Settings then go to Apps and remove the rogue app. Again, news about some dead famous celebrity will be aired on the news first or posted on ligitimate news websites.
This has been a public service announcement from yours trully, Mingkoy ang taong kumikita ng extra income sa internet. Stay safe guys!