Conversation so far:
Was Henry Hill an informant?
In 1980, Henry Hill was arrested on narcotics charges and became an FBI informant.
What did Henry Hill testify about?
Henry Hill testified against his former mafia associates, resulting in 50 convictions, including those of caporegime Paul Vario and James Burke on multiple charges.
Was Henry Hill afraid of testifying?
Is there any important information about the article that you found significant about Henry Hills informancy?
Hill, his wife Karen, and their two children entered the U.S. Marshals' Witness Protection Program in 1980, changed their names
How long was Henry Hill and his family in the Witness Protection Program?
Due to his numerous crimes while in witness protection, Henry Hill was expelled from the program in the early 1990s.

Question: What did he do after that?
Self-contained rewrite: What did Henry Hill do after getting expelled from the witness protection order?