Conversation so far:
What started Billy Joel's solo career?
Billy Joel signed a contract with the record company Family Productions with which he recorded his first solo album, Cold Spring Harbor.
Where was Cold Spring Harbor?
Cold Spring Harbor is a town on Long Island
What was Billy Joel's debut album called?
Billy Joel's debut album was called Cold Spring Harbor.
Who helped Billy Joel begin his solo career?
Artie Ripp states that he spent US $450,000 developing Billy Joel
Where did Billy Joel know Artie Ripp from?
In 1964, Billy Joel played on a recording of the Shangri-Las' Remember (Walking in the Sand). The released single included a co-producer credit for Artie Ripp.

Question: What happened to Troy?
Self-contained rewrite: What happened to Billy Joel's manager Jon Troy?