Is there anyone living in Dingxin apartment of Yunnan University?

yes. According to the relevant public information, Dingxin Apartment has already been unsealed except for the 317 dormitory at the scene of the incident. Yunnan University, referred to as Yunda for short, is located in Kunming, Yunnan Province, and is now under the jurisdiction of the Yunnan provincial government. It was founded in 1922, was selected into the national "211" project in 1996, became the list of "double-first-class" universities in China in 217, and continued to be selected into the second round of national "double-first-class" universities in 222.