I'm signing this in support of Marcus' explicit request that in the event that his heart should stop, doctors should nonetheless, fulfill their professional oath and moral and ethical obligation to do everything in their capacity to sustain his life. Since this has been his expressed wish while he was in a conscious and sound state of mind then this is what doctors should seek in good faith to do. All the more so, since this too is also the wish of his family. Should the worse happen, at least his two children will then be able to move on emotionally knowing that all that could be done was done. A more healthy closure would then be possible for them as well as for both family and friends.