That's really interesting - I was just reading about this Christian who masqueraded as an Apostle and sent Christ to his death, here: http://www.drbo.org/chapter/50018.htm
Betrayers are nothing new under the sun.
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Interesting, I was just reading about the Catholic Jesuit Priest who as Commandant @ the Nazi Concentration Camp, Jasenovac, Serbia in Yugoslavia where as many as 700,000 were murdered, mostly Serbian Orthodox Catholics with thousands of Jews and Christians. All this under the aegis of the Nazi Pope at the Vatican!