conrad followed in a police cruiser. a dash cam recorded the absolute desperation in his voice. >> this is not happening. this is really not happening. i really don't understand any of this. this is so crazy. >> reporter: about an hour after conrad arrived, hospital staff delivered the devastating news. heidy wagner truman could not be saved. >> it was pain, it was misery. it was why, how? >> reporter: in a neighboring town heidy's mother janet would soon agonize over those very same questions. it was after midnight when two police officers came to her door. what must that be like? >> the most horrendous thing ever. and i would never want anybody to have to feel that and that pain, that agony of knowing that your daughter, for whatever reason, is dead. is gone. >> reporter: the officers wouldn't give janet any details.