Until tonight I didn't realize that AA member Charles Jackson, author of the book The Lost Weekend (same title of the movie), ended up dying by his own hand in 1968. Suicide by hanging.
The Lost Weekend was written in the 1940's and is based upon his own life. Alcoholic finds AA and all is well. Only for a while apparently, unless he was faking it (and didn't make it).
"Sadly, Jackson never escaped the grip of alcoholism and whatever private torments he carried from within, committing suicide in 1968."