Conversation so far:
When did Joe Paterno become head coash?
Paterno was promoted to associate coach, the top assistant, in June 1964, and when Engle announced his retirement in February 1966, Paterno was named his successor the next day.
What condition did Joe Paterno suffer from?
He was diagnosed with lung cancer in late 2011.

Question: When did Joe Paterno die?
Self-contained rewrite: When did Joe Paterno die?