FILE - This is a Tuesday, Oct. 5, 2010   file photo of British author Terry Pratchett  seen at the Conservative party conference in Birmingham, England.  Fantasy writer  Pratchett, creator of the “Discworld” series   died  Thursday March 12, 2015 aged 66.  Pratchett, who suffered from a very rare form of early onset Alzheimer's disease, had earned wide respect throughout Britain with his dignified campaign for the right of critically ill patients to choose assisted suicide.  (AP Photo/Kirsty Wigglesworth, File)

Fantasy author Terry Pratchett dies at 66

Fantasy writer Terry Pratchett, creator of the exuberant, satirical “Discworld” series and author of more than 70 books, has died. He was 66…