If you are referring to a real person with that name, please clarify; however, based on pop culture, the following applies.
The "verified" Khmer claim likely stems from one of two things: vincenzo cassano speak khmer verified
The Consigliere's Tongue: Under the guidance of his adoptive father, Don Fabio, he mastered the art of negotiation and law, becoming the family’s trusted consigliere. His Italian is a mark of his upbringing, while his Korean remains the language of his buried trauma and eventual revenge. If you are referring to a real person
: The primary language of the series as the setting is South Korea. based on pop culture