Pope John Paul II

KNTV FeedRoom at NBC has a live feed from the Vatican - there is quite a large crowd gathering at the bottom of the picture - the square would be completely shut off at this hour of the night. It is after midnight in Rome at the moment - I walked through the square Tuesday night and there was about 15 people in total there - obviously people are trying to find out what happened.
His lights are off - the top 3 on the right of the Apostolic Palace which is to the back of the building in bottom right of picture.

According to Sky, doctors are saying that he is "sick, very sick".