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Jeopardy champion will invest most of $428,000

This "Jeopardy!" contestant racked up 20 consecutive wins become the TV game show's second-most successful champion.

Who is Julia Collins?

The Chicago-area resident lost during her 21st appearance, which was on Monday's episode, after accumulating $428,100 in prize money.

"It was fantastic," she said. "I didn't want it to end. I was sorry that it did."