Aside from being unrecovered heroin addictt, both Becker and Fagan who ran their studio for commercial use, routinely paid studio side people (singers, overdub instruments they themselves did not play, horns etc) with cocaine. Thus hooking people into being cocaine dealers themselves to convert this to cash to pay their bills, because grocery stores and other legal businesses do not accept cocaine as payment. Quite known in the industry and, not alone. Heroin the “elite” drug (not). It’s not called dope for nothing.
I heard that there was a period of time in the early 80s known as the blizzard of Hollywood or the Hollywood snow storm or something like that... that’s just weird to me, I would have thought psychedelics would have been the high of choice.