. >> larry: john metz joins us from new york. tried to amputate his left arm when it was trapped in the furnace. he just about sawed it off clean through. melissa is john's fiancee and they're here tonight with an incredible survival story. this is 12 days since paramedics found you in your basement. how are you doing now, john? >> all things considered, larry, i'm doing pretty well. >> larry: how did the arm get caught? >> well, i was cleaning the heating elements in my 70-year-old boiler. dropped basically a vacuum rose adapter into the boiler and really without giving it much thought stuck my arm in between a couple of these heating elements and before i knew it my arm was trapped above my elbow. >> larry: were you in a lot of pain? >> initially, no. there was a wave of panic that really prevented me from feeling any pain. in the first few minutes as i struggled to free my arm, the pain started to set in as a result of the scraping and cutting from the heating elements themselves. >> larry: where were you, melissa? >> i was in