Detective Comics #227

Criminal Monte Fisk had escaped the law a score of times. But then, John Jones was put on the case. Using his Martian powers, he is able to read Fisk's mind and finds out that he is guilty of murder. He confronts Fisk, but since he had no solid evidence, he is unable to arrest him. Fisk decides John Jones is too close, so he orders his henchmen to assassinate John Jones. But since Jones cannot be harmed while in his extra-terrestrial form, they fail every time. Fisk eventually confesses thinking that John Jones is actually a ghost detective.