Professional fisherman caught cheating at a tournament with a $100,000+ winners pot. They have won numerous big money tournaments in the past as well. Part of the prize money is from $1000s of dollars, per person, in entry fees.
Gutting the fish up close:
Longer video that the above was pulled from (2 min):
Secondary perspective of the weigh-in leading up to, and including the getting caught (farther back from the crowds POV). I timestamped it for right before they got caught, can rewind if you want to see more: