Good grief--are you still at this? Maybe you should be talking to the guy who thinks that 500 people observed christ's resurrection, and were tortured to death by a mysterious cabal of conspirators for it.
That's the account of Paul.
1 Corinthians 15: 1-8 (RSV) Now I would remind you, brethren, in what terms I preached to you the gospel, which you received, in which you stand, by which you are saved, if you hold it fast--unless you believed in vain. For I delivered to you as of first importance what I also received, that Christ died for our sins in accordance with the scriptures, that he was buried, that he was raised on the third day in accordance with the scriptures, and that he appeared to Cephas, then to the twelve. Then he appeared to more than five hundred brethren at one time, most of whom are still alive, though some have fallen asleep. Then he appeared to James, then to all the apostles. Last of all, as to one untimely born, he appeared also to me.
You don't have to believe Paul's testimony if you don't want to. He was writing this letter to people who could have checked his story out. You and I can't do that, so we ahve to turn to other tests.
As for the gruesome deaths of the Apostles, those are a part of Church History. They are not well documented but have been handed down for nearly 2000 years.
Shalom.