I first heard of the travesty against Terri Schiavo through Glenn Beck a year or two ago. To say though that he is the only member of the media who has addressed the matter is incorrect. Throughout the internet media, hosts of many radio programs, including Alex Jones, George Noorey, Michael Savage, Michael Corbin, Jeff Rense, Lisa Guiliani and no doubt many others have been accurately informing their listeners of the Terri Schiavo story. Some of the mainstream TV media and newspapers have told the story, but in most cases that I've seen or read, they've gotten it wrong.
Glenn Beck's the only one I've heard with all the details about the lawsuit settlements, the way Michael walked away, etc. I've not heard of many of the radio program hosts you describe.