Nearly a month after Danhao Wang, a Chinese researcher at the University of Michigan, died following “hostile questioning” by the US, China has now called for a 'thorough investigation' into his death.Wang, an assistant research scientist in the university’s electrical and computer engineering department, reportedly died on 20 March after falling from the campus building.Also Read | Does the Iran war increase the risk of a Chinese attack on Taiwan?Who was Danhao Wang?Wang was an electrical and computer engineering research assistant at the University of Michigan. According to his LinkedIn profile, he listed himself as a postdoctoral research fellow who…