After more than seven long years charting the rise and collapse of Malaysia’s most infamous financial scandal, former prime minister Najib Abdul Razak was today convicted on all charges by the High Court in Putrajaya.

Najib was then sentenced to 15 years’ imprisonment for each of his four counts of abuse of power in the 1MDB case, and five years for each of the 21 money laundering charges.

In what is likely...