Such a fact is confirmed through many years of consistent, profound meditation and internal experiences, whose symbolism relate and unfold in relation to the FACTS of our daily existence, with exactitude.
There is nothing special about such individuals; in fact, finding out that one betrayed Christ is extremely painful. Therefore, students should eliminate from themselves all fascination, ambiguity, laziness, assumptions, and mystical pride with wanting to be or suspecting they are a fallen bodhisattva.
To feel proud for having murdered God is heinous. Sadly, there are many people in the gnostic movement who become hypnotized by their dreams of being a famous reincarnation, of the return of Joan of Arc, or somebody great in some past cosmic age...
If you know this is your case, keep silent and pray, meditate, and work more upon yourself so that you do not make more mistakes.