We kicked him out of office a few years ago, then prosecuted his ass and jailed him. Happy ending? Not quite. His political party is permanently on the verge of freeing him, and there's a non zero chance he'll be PM again at some point in future. Malaysian politics are a ride.
One of the main embezzlers, and leader of the country, dismissed everyone who tried to investigate him. Only a few years ago was the investigation resumed in earnest.
I worked at a semi-prominent investment firm and getting in with the sovereign wealth funds was their end-game, too. They were chomping at the bit to cozy up to the Saudis. I believe the Pandora Papers thoroughly confirmed how fucked we've been for a long time, but nobody has come close to doing them justice, and possibly never will. That's the whole point of offshore accounts in countries built to shelter rich people--the secrets are well-guarded, by design.
There's also demonstrated links between Malaysia's ex-PM and Trump's white house (attempted bribery to drop US prosecution of him and his family, $100ks spent at Mar a Lago)