"2. If they did, who would have wrote about it? "
I don't think I quite get what you mean, could you please elaborate?"
If, for example, Peter right befoe he was about to get crucified upside down, started yelling, "whoops, heh, guys, all that shit ive been saying is wrong, Ive been pulling your chain for all these years, please dont kill me" who would have wrote that down? The Early Christian who has devoted his life to Jesus who is sure Peter was under duress, the romans who could care less (and even if they did write it down no one would believe them anyway). Even if perhaps a large portions of Christians heard some form of retraction and hung up their sackclothes a small number could continue on until Constantine made them the official religion of the empire, and christianity gained its power. You are assuming they all went to their death stoically and with a prayer on their lips, exactly what any early Christian would want you to think.