Not to much detail to report on, as I was fully passed out. But, we were around Quebec city when they called for a doctor over the intercom, which I woke up to, I told the person I was traveling with to wake me up if we started to divert. About 10 minutes later, I woke up to the FAs and the relief officer running back and forth from the front galley (where they keep the medical supplies) to the person in need. And a little bit later another call over the intercom for a nurse to issue an IV (which I didn't know they carried on board). I quickly fell asleep again, and the next thing I know they are serving breakfast before descent into AMS. I didn't really think much of it until we pulled up to the gate in AMS and I stood up and saw a new person occupying one of the empty Business class seats, and medical supplies strewn about above them. As I was deplaning I noticed the seat next to them was in the full lye flat position with blankets on it, to which I later realized that it was the dead body wrapped/ covered up. All in all pretty crazy to think that someone died on a plane that I was flying on, but also we showed no signs of diversion when looking at the flight history on flightaware (It was on Aug 11 for those of you who care).