Danhao Wang, an assistant research scientist in the electrical and computer engineering department at the University of Michigan, died on March 20 after reportedly falling from a campus building. Following his death, US authorities are investigating the incident as a possible act of self-harm, which has been interpreted as suicide. Wang had been questioned by US law enforcement regarding his research shortly before his death. China's foreign ministry described the questioning as 'hostile' and expressed deep sadness over Wang's death. They demanded a thorough investigation, claiming that US authorities have been unfairly targeting Chinese scholars, which undermines cultural exchanges between the two nations. Wang, who had been at the university since August 2022, previously worked at the University of Science and Technology of China and had a notable academic record with 112 publications focusing on semiconductor materials. The FBI has not confirmed whether Wang was under investigation, adhering to a policy of not commenting on specific cases. This incident follows earlier arrests of Chinese researchers at the same university over alleged smuggling, which were later dropped.