These clues hold the key to the 23-year manhunt of fugitive bank swindler

The search for one of the most elusive fugitives of the last 20 years is now a three-part Hulu Original series by ABC News.

This report is part of a three-part Hulu Original limited series "Have You Seen This Man?" which premieres on March 24. It follows the U.S. Marshals' ongoing mission to find John Ruffo, who engineered one of the most outlandish frauds in U.S. history, vanished in 1998 and has never been found. Ruffo's case was first featured in Season 2 of the ABC News podcast, "Have You Seen This Man?," hosted by "The View's" Sunny Hostin.

It's been a case that's stumped investigators for two decades.

John Ruffo was scheduled to begin his 17-year prison sentence in 1998 for conviction on numerous charges, including wire fraud and money laundering, for a scheme that defrauded more than $350 million from numerous banks. But he fled after he turned in his ankle bracelet.

He has been on the lam for over 23 years.