WOW! Isn't it amazing how one gets to be a scholar. No work at all, just say what you want. I don't know if Thomas was at the crucifixtion, but now doubt he knows what happened. Here from the book of John, chapter 20 is what he says:
24Now Thomas (called Didymus), one of the Twelve, was not with the disciples when Jesus came. 25 So the other disciples told him, "We have seen the Lord!" But he said to them, "Unless I see the nail marks in his hands and put my finger where the nails were, and put my hand into his side, I will not believe it."