Conversation so far:
Did Bobby Womack ever try to be clean?
Towards the end of the 1980s, Bobby Womack went into a rehabilitation center to get over his cocaine addiction, which he said he conquered.
What was Bobby Womack addicted to?
Bobby Womack's cocaine use turned into an addiction by the late 1970s.
Was Bobby Womack addicted to anything else besides cocaine?
What were some of Bobby Womack's health problems?
Bobby Womack survived prostate cancer.
Other than prostate cancer, did Bobby Womack have any other health conditions?
A series of health problems would follow Bobby Womack's survival of prostate cancer, including diabetes, pneumonia, colon cancer and the early signs of Alzheimer's disease.

Question: How did he die?
Self-contained rewrite: How did Bobby Womack die?