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Ling Xin

The ashes of Chinese researcher Wang Danhao have been returned to his home in China, nearly four months after he died by suicide following questioning by US law enforcement.
The remains of the 31-year-old University of Michigan (UMich) semiconductor scientist – remembered by colleagues as a gifted, hard-working researcher with a bright future – are now with his mother, his only immediate family member, who raised him as a single parent, according to a source familiar with the matter.
Both Wang’s mother and fiancée, whom he had planned to marry this summer in China, suffered severe emotional distress following his death, said the source, a legal professional based in Michigan who spoke on condition of anonymity, citing the sensitivity of the case.
Wang had secured a faculty position at the University of Science and Technology of China in Hefei, his alma mater, and was planning to wrap up his research in the United States before flying back to China in May, the source said.

Since 2022, Wang had worked in Zetian Mi’s lab at UMich as a postdoctoral researcher to develop advanced semiconductor materials that could enable more efficient electronics and next-generation light-based technologies. His work was featured on the university’s website in 2024 and 2025.
But Wang’s life took a turn this year.
On March 18, US federal law enforcement interviewed Wang in what China’s foreign ministry and its embassy in Washington later called “hostile questioning”.
Late the following night, Wang jumped from an upper floor of the George G. Brown Building, where he worked, and was pronounced dead early the next morning.
An autopsy report completed in May ruled Wang’s death a suicide. But his family, friends and the UMich community are still waiting for the police report, which could provide critical details about the events leading up to his death.
Among them is John Minock, a lawyer in Ann Arbor, where UMich is located. Minock was one of the last people Wang spoke to before his death. Minock said Wang came into his office on Thursday morning, the day after he was interviewed by federal officials.
Wang reached out to Minock because the lawyer had represented Chinese researchers accused of smuggling biological samples at UMich. The two had talked for “quite a while”, Minock told the South China Morning Post.
Wang appeared to be “extraordinarily anxious”, said Minock, who recalled trying his best to assure Wang that everything would be fine.
Minock said police called him on Friday morning to tell him of Wang’s death. They had found his business card in Wang’s pocket and used it to contact the lawyer.
“I was shocked,” Minock said.
The SCMP has filed a Freedom of Information Act request for the police report. The university said it could take up to 40 business days to process.


Both Minock and the anonymous source said the officials who questioned Wang were not from the FBI but the US Department of Homeland Security.
The source further identified them as an officer from Customs and Border Protection and an officer from Immigration and Customs Enforcement, also known as ICE.
Clay Zhu, a lawyer at DeHeng Law Offices in California, said more federal agencies had begun joining investigations into Chinese scholars in the US, creating a chilling effect in academic circles.
The scrutiny could start with something as simple as the US visa application form and supporting documents submitted years earlier, Zhu said.
“You could easily have made an unintentional mistake on the form, or not remember exactly what you filled in.”
“If your recollection doesn’t match what you wrote at the time, that could be treated as a false statement – a felony,” said Zhu, who now represents China Initiative victim Franklin Tao Feng in his wrongful termination suit against the University of Kansas.
“When you’re questioned by federal officials, the best approach is to stay silent or just say, ‘I want a lawyer’,” Zhu added.
Since June last year, UMich has emerged as a primary focus of federal scrutiny regarding foreign academic influence, with five Chinese researchers detained for months over separate allegations of smuggling biological materials into university labs.
Two of those detained admitted to the charges and were deported. Charges against the other three were dropped in February, following what their lawyers described as intervention by the Chinese consulate in Chicago.
As for Wang’s family, his mother is in poor health but still waiting for an answer from the university and the US government, according to the source.
“Someone has to be held accountable for his death,” the source said. “No one who was about to get married, move home and start such a good job would abruptly take his own life.”
If you have suicidal thoughts or know someone who is experiencing them, help is available. In Hong Kong, you can dial 18111 for the government-run Mental Health Support Hotline. You can also call +852 2896 0000 for The Samaritans or +852 2382 0000 for Suicide Prevention Services.
In the US, call or text 988 or chat at 988lifeline.org for the 988 Suicide & Crisis Lifeline. For a list of other nations’ helplines, see this page.


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What happened before Chinese semiconductor scientist Wang Danhao took his life in the US?

Wang Danhao had secured a faculty position at the University of Science and Technology of China in Hefei, his alma mater, and was planning to fly back to China in May, according to a source. Photo: Handout

US federal law enforcement interviewed Wang Danhao the day before his death in Ann Arbor, Michigan. Photo: Linda Wan

Michigan community ‘seeks answers’ to death of Chinese semiconductor researcher Wang Danhao

Wang Danhao, a young and promising Chinese semiconductor researcher at the University of Michigan, took his own life after being subjected to ‘hostile questioning’ by US federal agents. Photo: Linda Wan

Community members and activists gathered on the University of Michigan campus on Friday evening to remember semiconductor researcher Wang Danhao. Photo: Linda Wan

Chinese embassy in US confirms death of semiconductor researcher Wang Danhao

Wang Danhao, a postdoctoral researcher at University of Michigan’s College of Engineering since 2022, is reported to have died after a fall on campus late on March 19. Photo: Handout

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Chinese semiconductor researcher Wang Danhao died at the University of Michigan in March, shortly after being questioned by US federal law enforcement. Photo: Handout

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China

Promising researcher’s family and friends still await police report, which could provide critical details about events leading to his death


Promising researcher’s family and friends still await police report, which could provide critical details about events leading to his death.


United States

University of Science and Technology of China

University of Michigan

What happened before Chinese semiconductor scientist Wang Danhao took his life in the US?

.css-1c6uqr6{color:inherit;font-weight:inherit;font-size:inherit;font-family:inherit;line-height:inherit;overflow-wrap:break-word;}Promising researcher’s family and friends still await police report, which could provide critical details about events leading to his death

Promising researcher’s family and friends still await police report, which could provide critical details about events leading to his death