Translate the text into English. When Mark, Pru, Danny, and Slade were 12, they went for a walk in the park. But with them came Mark's annoying five-year-old brother, Jessie. The kids were rude to him and told him to go home. Jessie ran away, but he never returned home. Twenty years later Danny, who had become a detective, learns shocking news: at the scene of one murder they found Jessie’s DNA. So he is still alive and can be found.