The U.S. government charged a father-daughter team of North Korean nationals for illegally using the U.S. financial system to trade with North Korea, according to a U.S. government complaint filed on Sept. 11.

Ri Jong Chol was previously a suspect in the murder of North Korean leader Kim Jong Un’s half brother, Kim Jong Nam, who was poisoned using a VX nerve agent at Kuala Lumpur Airport in 2017. Ri was arrested shortly after Kim’s death, but was deported and blacklisted from Malaysia upon his release due to lack of evidence.

The U.S Justice Department complaint — which also