Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
Any remaining air that the unresponsive diver has should only be used for bouyancy. If a gas problem is present the rescue diver would also be at risk by using it.
Insufficient and/or inaccurate informaion from the media, incomplete eye witness informaition. A quick bounce to 115 feet to save a colleague would be a no brainer for me given even borderline gas requirements. Under most circumstances, this would remain a no deco dive or would incur a short deco obligation. At worst, would require O2 administation which would probably be given up to the affected diver. I would expect the same from my buddies
Respectfullly,
Craig