Hubert Lui

Hubert Lui, a character in the Law and Order: Investigation series, is one of the antagonists of episodes 9-12.

He is the murderer of Printworx CEO, Keith Mox. A year prior to the murder, Hubert, Keith, and Hubert's wife, Sarah Montgomery, started Printworx as an upstart tech company that specialized in 3D Printing. They were approached by gun rights activist Casey Parker, who was intrigued by their work and wanted to start a business deal with them making 3D printed guns. After Keith and Sarah tried to back out, Casey took advantage of Hubert's paranoia that Keith and Sarah were having an affair and emailed him plans for a 3D gun.

After killing Keith, Hubert tried to kill Sarah, but the gun blew up in his hand and hospitalized him. He then confesses to killing Keith and tells the detectives that Casey Parker was the real mastermind behind the murder.