My adviser on all things Irish sent me this link about her past, so maybe some clues there. She certainly hasn't had the easiest of lives, but way too young to die.
https://www.belfasttelegraph.co.uk/...-demons-that-linger-in-her-life-30758766.html
Terribly sad. Made some classic 90s records. PS the escorted off the flight thing was 4 years ago by the way....