Now to find your Christ you say is in John and Mark then you should research and investigate the Historical Christs matching the described stories and historical figures events etc.
Let me see If I can correlate those texts to the Fitting figure then that Historical christ can be discussed.
All four gospels were written between the years 50 -100 c.e., during a time of brutal Roman occupation, the destruction of Israel, and the slaughter exile and enslavement of hundreds of thousands of Jews. Hundreds of years of Jewish and Christian persecution followed. The frankenstein Jesus based on many pagan sources and historical Jewish characters created by Rome in 325 c.e. had not yet been conjured.
The only form of Judaism and Christianity that were allowed to persist was the Christianity created by Rome that is a desecration of the teachings of Jesus and a demonstration of pure hatred for God and the only branch of Judaism that was allowed to persist by Rome also hated Jesus, that bastard, because of his teaching that exposed their ignorance that the law was figurative and the subjects hidden..
If you have no definitive proof that any such Jesus existed as described by the esoteric writings in the Gospels, whose image was further distorted and perverted by the dogma and doctrines perpetuated by the Roman church, it is because he was denigrated, his teachings disregarded as the ramblings of a suicidal lunatic who was a drunk that ran around with sinners and prostitutes, and his memory was extirpated leaving no record of him other than in the gospels themselves and a few dismissive and derogatory accounts recorded by the people he publicly humiliated and condemned as actors and money grubbing lying frauds, according to the gospels.
Any discussion about Jesus to discover what he taught and why he pissed of so many people and was so deeply hated can only be discovered by deciphering the figurative language used in the gospels that was the same language used by the authors of the OT, the language of the prophets as was taught to be understood by Maimonides..
As with the book of Isaiah that is a compilation of many authors over a long period of time the historical accuracy of the character written about is irrelevant, only the hidden teaching matters..
If you look and look and keep on looking, you will find it. If you do not look, you will never find it.