According to the indictment and documents presented by the prosecution, in 2025 Zhang travelled to Seattle with another individual, after allegedly receiving instructions from Chinese handlers. The purpose of the trip, according to investigators, was to surveil a relative of a senior official in the Taiwanese government.
Law enforcement later identified the target as Lai Ting-yu, son of Taiwan President Lai Ching-te, who lives in the Seattle area. According to reports, he resides in the United States with his wife and child.
The details uncovered in the investigation offer a glimpse into how the surveillance allegedly unfolded. According to the indictment, Zhang and her partner flew from Las Vegas to Seattle on September 1, 2025, rented a Nissan Rogue, and arrived in the area where the target lives.
A neighbour's security camera reportedly recorded the two in the area of the house, filming members of the family. Investigators claim Zhang photographed the house, the vehicles and family members, and even passed on details relating to licence plates to the Chinese operatives.
One of the unusual details in the affair was found in correspondence uncovered during the investigation. According to the indictment, after identifying the target, she wrote to her Chinese handler that she had seen "the young man" and was photographing him. She later sent, according to investigators, vehicle licence plate numbers as well. The correspondence, according to authorities, was located in Zhang's cloud account as part of a search warrant.