A federal jury found Michael McMahon, a retired NYPD sergeant turned private investigator, guilty of acting as a foreign agent and interstate stalking after a two-week trial in June 2023. The jury acquitted him on a count of conspiracy to act as a foreign agent. According to prosecutors, McMahon was a critical member of a Chinese campaign to intimidate dissident Xu Jin, a former Wuhan city official, and his family, with the end goal of pressuring Xu into returning to China.