Two Foreign Nationals Arrested in Serbia for Directing Interstate Stalking and Harassment Scheme Targeting Los Angeles-Based Critic of Chinese President Xi Jinping

Yesterday, Serbian law enforcement authorities arrested two foreign nationals, Cui Guanghai, 43, of China, and John Miller, 63, of the United Kingdom, at the request of the United States. Today, the United States unsealed its criminal complaint alleging that Cui and Miller coordinated and directed a conspiracy to harass, intimidate, and threaten a Los Angeles resident (the Victim) who had been publicly critical of President Xi Jinping.

According to court documents, beginning in October 2023, Cui and Miller enlisted two individuals (Individual 1 and Individual 2) inside the United States to carry out a plot to prevent the Victim from protesting President Xi’s appearance at the Asia Pacific Economic Cooperation (APEC) summit in November 2023. The Victim had previously made public statements in opposition to the policies and actions of the PRC government and President Xi.

Unbeknownst to Cui and Miller, Individual 1 and Individual 2 were affiliated with and acting at the direction of the FBI.

In the weeks leading up to the APEC summit, Cui and Miller directed and coordinated an interstate scheme to surveil the Victim, to install a tracking device on the Victim’s car, to slash the tires on the Victim’s car, and to purchase and destroy a pair of artistic statutes created by the Victim depicting President Xi and President Xi’s wife.

A similar scheme took place in the spring of 2025, after the Victim announced that he planned to make public an online video feed depicting two new artistic statutes of President Xi and his wife. In connection with these plots, Cui and Miller paid two other individuals (Individual 3 and Individual 4), approximately $36,500 to convince the Victim to desist from the online display of the statues. Unbeknownst to Cui and Miller, Individual 3 and Individual 4 were also affiliated with and acting at the direction of the FBI.

If convicted, Cui and Miller face the following maximum penalties: five years for conspiracy and five years for interstate stalking.

The FBI is investigating the case. The United States thanks the Ministry of Justice of Serbia, the Ministry of Interior of Serbia, and the Republic Public Prosecutor’s Office of Serbia for the assistance in this matter. The United States will seek extradition of Cui and Miller and looks forward to working in partnership with the Republic of Serbia’s Prosecutor’s Office and the Ministry of Justice.

Assistant U.S. Attorneys David Ryan and Amanda B. Elbogen for the Central District of California, and Trial Attorneys Leslie Esbrook and Menno Goedman of the National Security Division’s Counterintelligence and Export Control Section are prosecuting the case, with valuable assistance provided by Assistant U.S. Attorney Benjamin P. Taibleson for the Eastern District of Wisconsin, and Trial Attorney Goran Krnaich of the Justice Department’s Office of International Affairs.

A criminal complaint is merely an allegation. All defendants are presumed innocent until proven guilty beyond a reasonable doubt in a court of law.