WTF? Where did I say he wrote anything? All I said is he and the person referred to in the Gospel called "John" are one and the same.
Maybe I’m missing something. We’re discussing a figure in a DaVinci painting of Jesus and his 12 apostles at the last supper. You make the following statement...
“It’s St. John (as in Matthew, Mark, Luke, and John).”
Matthew, Mark, Luke and John are the writers of the 4 Gospels, all of which, I understand, were written beginning 80-100 AD by people that were not of the original 12.
I may be worng about that fact but not about you linking the apostle in the painting with one of the 4 authors of the gospels.