Conversation so far:
How is Henry connected to an Informant?
Hill testified against his former associates to avoid a possible execution by his crew or going to prison for his crimes.
His testimony led to 50 convictions.
When did this happen?
1996.
What did he receive in exchange for testifying?
CANNOTANSWER.

Question: When did he go into witness protection?
Self-contained rewrite: When did Henry Hill go into witness protection?