Who made Liu Hongyan at the crime scene?

Security supervisor. According to the plot of the TV series "Killing Scene", the news of Liu Hongyan's death was exposed. She was killed while checking into a hotel, so the security guard killed Liu Hongyan when no one broke into her house. When female directors died tragically in the street, the girl's bloody clothes were surprised at the construction site, and two bloody cases occurred overnight, which attracted the attention of the police. Lang Feng, a young detective in Murder Scene, and Fan Yun, an intern policeman, pushed their way through the crowd to find the truth.