His Vanity Fair pieces were a guilty pleasure for me. From his CNN obit:

Called “Nick” by his friends, Dunne was putting the finishing touches on his final novel, which he said he planned to call “Too Much Money,” when his health took a turn for the worse.

He flew to Germany earlier this month for another round of stem cell treatments at the same Bavarian clinic where the late Farrah Fawcett was treated. He was hospitalized upon his return to New York, then sent home.

As a correspondent for Vanity Fair magazine, Dunne was a fixture at some of the most famous trials of our times — Claus von Bulow, William Kennedy Smith, the Menendez brothers, O.J. Simpson, Michael Skakel and Phil Spector.

Vanity Fair’s obit; clips from the documentary, Dominick Dunne: After the Party: