It was probably a plan that sounded good at the time – trick gaming machines at Miccosukee Resort & Gaming into spitting out false payout vouchers and cash in the winnings. However, what looks good on paper doesn’t always work in real life, and eight people that carried out the scheme at the Florida casino, walking away with more than $5 million, have found this out the hard way. According to a Department of Justice press release, they have now pleaded guilty to various crimes and will spend substantial time behind bars concocting their next scheme.

Michel Aleu, Lester Lavin, Yohander Jorrin Melhen, and Leonardo Betancourt are previous employees of the casino. In 2011, they hatched their plan with the help of one who worked on the video games for the venue. The machines began to offer the fake vouchers, which were handed off to co-conspirators to be exchanged for cash. When it appeared that the casino had not wisened up, they kept their plan in motion and walked away with $5.3 million, until finally being caught four years later.

When the theft was uncovered, the group was rounded up and prosecutors began exploring which legal books to throw at them. In the end, prosecutors finally charged them last July with conspiracy to steal funds of more than $1,000, conspiracy to commit computer fraud and conspiracy to commit money laundering. Next stop, a courtroom to enter their plea. That has now happened, according to a press release from prosecutors, and they have pleaded guilty to all of the charges.

They wouldn’t be facing a judge alone, however. Also implicated in the scheme were the wives of three of the suspects, Maria Del Pilar Aleu, Anisleydi Vergel Hermida and Milagros Marile Acosta Torres. They had also been dragged into the saga and have pleaded guilty to money laundering. All defendants entered their pleas over several different court appearances, with the last, Yohander Jorrin Melhen and Milagros Acosta Torres, admitting to their crimes last Friday.