On the 12th, the National Police Agency's special investigation team, which is investigating suspicions of the police's lax investigation into high school girl murderer Jang Yoon-gi (24), summoned Park, former chief of the criminal division at the Gwangsan Police Station, for questioning. Inspector Park, the former head of the Gwangsan Police investigation team who was arrested on charges of destroying evidence, was also investigated for two consecutive days on the 11th and 12th. As the investigation continues into the key officials in the command line at the time of the initial investigation, the investigation to uncover suspicions of police negligence and cover-up is in full swing. Inspector Park is accused of ordering the deletion of a cable tie video filmed by a member of the investigation team during the search and seizure of Jang Yoon-gi's vehicle on May 5. Former Chief Park has been pointed out as the person who relayed reports and commands between the investigation team and the mine chief named Kim at the time. The special investigation team is focusing on looking into how the Gwangju Police Agency and Gwangsan Prefecture command at the time passed the case to the prosecution by applying a general murder charge, not a rape-murder charge, even though they were aware of the circumstances of Jang Yoon-gi's sexual crime. The statutory penalty for rape and murder is death or life imprisonment, which is more severe than that for murder. The command at the time was from May 5, when Jang Yoon-gi was arrested, to death on the 14th before he was transferred.