"Nlzkm9" must have thought they had one hand on the WCOOP title after scooping a 71 million pot just a few hands prior. "AlexKP" who was ahead preflop, with two kings in their hand, was left with less than 4.5 million after their opponent turned a full house.
In the final hand of the final day, "AlexKP" raised to 1.5 million with "Nlzkm9" making the flat call. As expected, the remainder of the chips were shipped into the middle on the flop.
On the flop, "Nlzkm9" only had a pair of fours but improved to two pair on the turn. It would be the second time in quick succession for "AlexKP" where their opponent would go runner-runner to make a full house on the river.