The University of Michigan Division of Public Safety and Security is investigating the March 20 death of Danhao Wang, an assistant research scientist in the College of Engineering. Wang was found after falling from an upper level inside a campus building and was later pronounced dead.
On March 19 at about 11:00 p.m., University of Michigan police responded to a report of a subject who fell inside the George G. Brown Building. The death is being investigated as a possible act of self-harm, said Melissa Overton, while the university has said Wang worked in the lab of Zetian Mi.
The case drew attention in China after a spokesperson for the Ministry of Foreign Affairs said a U-M researcher had been subjected to hostile questioning by federal law enforcement before his death. Lin Jian said on March 27 that a U-M researcher died by suicide after U.S. law enforcement interrogated him, and the Chinese Consulate in Chicago criticized the United States in a post to X, saying it was being groundlessly used to interrogate Chinese students and scholars.
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That claim lands at a sensitive moment for universities that host large numbers of Chinese international students and researchers, as scrutiny over alleged national security concerns has intensified. The university has not said that any federal questioning was linked to Wang’s death, and the facts released so far do not establish that connection.
Engineering Dean Karen Thole wrote on Friday that Wang played a major role in research breakthroughs at the University of Michigan and called him a promising and brilliant young mind. She said his work on wide bandgap III-nitride semiconductor materials and devices, published in Nature, was a landmark that uncovered for the first time the switching and charge compensation mechanisms of emerging ferroelectric nitrides.
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Thole also warned against misinformation generated by artificial intelligence and said, “This is an active police investigation and we have no further information to share regarding the circumstanc.” With the university still investigating and Beijing pressing for answers, the one fact that remains clear is that Wang’s death is being treated as an active case, not a closed one.
