Ye Wenyi, captain of Interpol, solved the case.

15 episode. Captain Interpol is a crime-solving TV series. In episode 15, the TV series tells Ye that as long as he can get the blood samples of Huang Dong's parents, he can compare them himself. Then he sent Chi-wah Lam and Huang Jia to take blood samples from Huang Dong's parents under the pretext of checking blood type. However, after repeated comparisons, Lu Tao found that the sperm DNA on the toilet paper found at the murder scene had nothing to do with Huang Dong's parents. Unless Huang Dong is not his parents' own, the murderer should not be Huang Dong. The whole novel is deeply loved by the masses because of its interlocking plots.