there is not as yet much about the details. Susan Page of USA Today had a tweet. Thomas's Wikipedia page has been updated with her death but without details.
Helen Thomas was a courageous reporter, one unafraid of challenging authority and conventional thinking. She quite United Press on principle after 57 years with the organization in a variety of capacities after it was purchased by Rev. Moon's New World Communications. She went to Hearst, where she continued to dog Presidents of both parties for a number of years.
Yes, she was forced into retirement for remarks about Israel and Palestine - remember, she was an Arab of Lebanese Christian background.
i choose not to focus on that incident. Instead I choose to remember the courageous correspondent/reporter who was unafraid of authority and used her position in the press to challenge it that we might all be better informed.
Rest in Peace, Helen. You did us all great service.
UPDATE for more details use this Google search on the words "Helen Thomas dead"