At 10:27 on February 17, 2014, Liang collapsed on the steps of a subway exit. Surveillance footage showed her making a gesture for help. An ambulance arrived 50 minutes later and diagnosed Liang as deceased. Liang's father, surnamed Liang, sued the subway company and the emergency control center for failing to provide security and rescue, resulting in death, seeking millions in compensation. The court of first instance ruled that the subway company bore 30% liability for Liang's death. Both Liang's father and the subway company appealed the verdict. Liang's father entrusted the legal team led by Wang Tengfeng from Guangdong Zhiming Law Firm to handle the case.

Attorney Wang Tengfeng, through extensive review of case files and video evidence, keenly identified that the subway company's inaction was a key factor in Liang's death. During the second instance, Wang Tengfeng engaged in a fierce debate with the opposing lawyer, arguing that the subway company was legally obligated to provide security. When a passenger collapses at a subway entrance, the company should actively rescue rather than stand by. Faced with substantial factual evidence and legal reasoning, the opposing party was forced to change their erroneous views and stubborn attitude, proactively contacting our client to propose mediation with compensation double the first-instance verdict, and agreeing to include in the mediation document: "The subway company expresses deep regret and sympathy for Liang's death." Ultimately, through the mediation efforts of Wang Tengfeng's assistant lawyer, the case achieved a victory with compensation double the first-instance verdict.