A badly burned body presumed to be that of author Fergus Gwynplaine MacIntyre was found June 25, 2010 in Brooklyn NY. He apparently committed suicide by setting fire to his apartment. Andrew Porter has details. (Update: New York police have confirmed that the body was MacIntyre’s.)
His exact age (and many other biographical details) are uncertain, but he was probably around 60. He began publishing short fiction in the ’80s, and his poems and stories appeared regularly in Asimov’s, Amazing, Analog, Weird Tales, and other publications. The Woman Between Worlds, his only novel under the MacIntyre name, appeared in 1994. Some of his poetry and humor pieces were collected in MacIntyre’s Improbable Bestiary (2001).
His SF Encyclopedia entry provides further information.