One might expect that winning a prestigious competition like the Cliburn would make a pianist's career for life, but as Cantrell points out, that simply isn't always the case. Feghali's performing career had been in decline for a number of years--though his teaching career should have been a bright spot. And reportedly, he was quite knowledgeable in tech, as he was also Coordinator of internet Technologies for the School of Music at TCU.
Whatever the circumstances were, his death is all too tragic.
Cantrell's article is available here.