" Those words suggested there was something far more wrong than just physically. In Harnisch's case, the doctors since diagnosed him as suffering from depression. If nothing else, his frequent appearances in the Mets' clubhouse have given rise to the belief his condition is not so deep-rooted and he may pitch again one day. No one really knows what demons lurk within the recesses of a person's mind, and there have been countless professional athletes before Harnisch who have had to combat them in differing degrees. Jimmy Piersall had to be institutionalized, but managed to fight his way back and go on to a successful career. Others, like Willard Hershberger, the Cincinnati Reds catcher who committed suicide in his hotel room in 1940, didn't get help in time. Hershberger was said to be despondent over his inability to cope with the pressures of playing in the major leagues. And then there is the strange case of Tony Horton, the former Cleveland Indians first baseman whose departure from the game in 1970, just as he was approaching his prime, remains one of baseball's most tragic unsolved mysteries. Horton was 25 years old, a budding star who had hit 27 homers the previous season, when he left the Indians in late August of that year and never returned. At the time of his departure, it was announced by the Indians that he was suffering from exhaustion and was, as the press release stated even then, "unable to perform.