Given the following reasoning and answer, what was the question? This is the relevant information: He is best known for becoming the first top prize winner on the United States version of Who Wants to Be a Millionaire.
The answer: John Carpenter
The question Passage: John Carpenter (born c. 1968) is an American game show contestant and IRS agent. He is best known for becoming the first top prize winner on the United States version of Who Wants to Be a Millionaire. He held the record for the largest single win in United States game show history, until it was broken by Rahim Oberholtzer who won $1.12 million on another U.S. quiz show, Twenty One. Carpenter was also the first top prize winner among all international versions of the Who Wants to Be a Millionaire? series.

Question: Based on this passage, who want to be a millionaire first winner?