How many nights do you think he spent gnawing on the barrel of a .38?
From this article:
http://www.dailymail.co.uk/tvshowbiz/article-447201/Pete-Best-The-happiest-Beatle-all.html "By the mid-Sixties he was so low he tried to commit suicide by gassing himself, only to be saved by his mother and brother, Rory."
I seem to recall from one of the many Beatles documentaries that they hired Brian Epstein and the first job they gave him was to fire Pete Best.
I've have heard that many times too ... from the same article:
" ...'We were cowards,' Lennon would say many years later. 'We got Epstein to do the dirty work for us.' ..."