Harlan Ellison, best known for his influential speculative fiction if not his confrontational personality, passed away at the age of 84.  His widow, Susan Ellison shared the news through family friend Christine Valada on Twitter.

Ellison was an active writer for most of his adult life, publishing short stories, comic book scripts, screenplays, essays and a wide range of professional criticism. He was also a noted editor of science fiction anthologies.  He has won multiple Hugos, Nebulas, Bram Stoker and other awards.  His most well known works include A Boy and His Dog: I Have No Mouth and I Must Scream; and “Repent, Harlequin! Said the Ticktockman.

He also won four Writers Guild of America awards, for “Demon with a Glass Hand” -The Outer Limits (Best Original Teleplay); "The City on the Edge of Forever" - Star Trek (Best Original Teleplay); "Phoenix Without Ashes" -The Starlost (Best Written Dramatic Episode); and "Paladin of the Lost Hour" -The Twilight Zone (Best Anthology Episode/Single Program).

More recently, DC Comics published Harlan Ellison’s 7 Against Chaos in 2013 (see "Harlan Ellison and Paul Chadwick") and IDW Publishing adapted Ellison’s original teleplay for the original Star Trek series episode "City on the Edge of Forever" in 2014 (see "IDW Adapts Harlan Ellison's Original 'Star Trek' Script").

He was well known for being combative with book editors and TV producers, and litigious in his later years, waging public battles over copyright infringement. “He always said, ‘Pay the writer,’" his longtime literary agent Richard Curtis told The Los Angeles Times.  "That was his motto."

Interestingly, Ellison predicted his own death back in 2010, during an interview with a Madison, Wisconsin weekly, Isthmus, during his last official convention appearance at MadCon (see "Ellison: 'I'm Dying'").