Qinnan Jail was the biggest, most heavily guarded jail in Qinshan City. All the worst criminals in the city were locked in there. Because Zhao Yu signed up ahead of time, the jail gave him a proper interrogation room, and not just a regular interrogation window.
The person Zhao Yu was interrogating was a criminal named Jiao Hai. He was sixty-five-years-old that year. More than ten-years-ago, he and a group of people joined a kidnapping and murder case! Once he was captured, he was given a deferred death penalty, then because of good behavior and volunteer activity, his punishment reduced to a life sentence. His two companions were shot to death at the scene by the police.