Importance thing happened when deactive my fb account

My friend from "united nation" group just passed away - he was one of my closed friend in fb (from south korea) it been almost a year since the 1st I time I know him. The reason that i know him is because the AFS program. Not that I been an exchange student of something but I did apply it when I n form 4 but I doesn't attend the interview because of certain reason.But he in an exchange student from korea in USA i thing the place is somewhere in east coast (Florida) or something . hope you rest in peace  T

G.