He had written a letter updating Glenn on how he was doing in his life -- wow, what a difference a year makes. The change in his voice was instantly noticeable and it was really quite a thing to hear the old Dave vs. the new Dave back to back. Glenn played the audio of Dave's call last year - when he was contemplating suicide - and then re-introduced Dave to America. Check out the amazing call on radio in the clip above. Read his original story HERE!