Who do you think the Son of Perdition is?Well...
...the BOOK says:
John 17:12 (NKJV)
While I was with them in the world, I kept them in Your name. Those whom You gave Me I have kept; and none of them is lost except the son of perdition, that the Scripture might be fulfilled.
2 Thessalonians 2:1-4 (NKJV)
Now, brethren, concerning the coming of our Lord Jesus Christ and our gathering together to Him, we ask you, not to be soon shaken in mind or troubled, either by spirit or by word or by letter, as if from us, as though the day of Christ had come. Let no one deceive you by any means; for that Day will not come unless the falling away comes first, and the man of sin is revealed, the son of perdition, who opposes and exalts himself above all that is called God or that is worshiped, so that he sits as God in the temple of God, showing himself that he is God.
It appears that example #1 is refering to Judas Escariot.
I doubt that example #2 is refering to Judas again, as that would be an example of REINCARNATION, so to whom the SECOND refers will have to remain unknown until it occurs.
(Fire up the speculation machine! Get out the verse snippet glue!! Ignore that pesky word REVEALED!!!)