Student or Learner
Dear Teacher,Wendy Deng has managed to get Rupert Murdoch mixed up in the same kind of scandal that his tabloids are infamous for exploiting. His affair with the statuesque Yale MBA precipitated a messy 1999 divorce with Anna, his wife of 31 years. He and Deng married in 1999 and recently announced that she is pregnant, further complicating the issue of who will succeed him at the helm of News Corp. Murdoch has groomed a succession of his children--Elisabeth, Lachlan and James--to fill the top spot once he has shuffled off this mortal coil. But now Deng herself seems firmly in the running. She was working in Hong Kong for Murdoch's Star TV satellite outfit when she caught the magnate's eye; Murdoch was reportedly quite taken with her understanding of the Chinese media industry.
Why did the author use present perfect tense for the phrase " has shuffled off this mortal coil"
shuffle off this mortal --->die
has shuffled off this mortal ---> has die (but Murdock is still alive)
------ once ---+present tense (present tense can express a future action)