There is no proof besides a bible that he was here but there is also mention of him in other religions/documentation that don't worship him (Jewish/protestant etc.)
The belief of god is the equivalent of me believing in pink unicorns and flying saucers, although there is no proof to disprove either one.
So many religions that worship different gods or godesses and yet somehow we alway come back to christianity. Every religion screams their god is the creator so which one do you believe?
There is many bible too catholicism that I think alot of christians don't know about or deny completely but they were written by the same "men" who wrote the bible. The bible itself was written 200 years after jesus death and perception or ideal about him could of changed, like playing telephone. Anyway, references would be the bible of mary magdalene(different perception) the bible of Judas, the other bible and the dead sea scrolls. What I would like to know is why they aren't in the bible, they are all different perceptions of that time with similarities and differences...
In the bible Luke refers to angels as being ordinary "men" who carry messages (Job 1:14; Luke 7:24; 9:52)!! King soloman refers to ordinary people as being demons or devils! I think Jesus was an ordinary man, who probably had a mental disorder.
The word Satan (Ha-satan) means opponet or adversary, there in a world with an omnipotent god, it makes you wonder why he didn't destroy Lucifer. The reason is that he wouldn't be all glorified if he didn't have something to compare to (White and black.)
Read up on nephilim, if this were true, we have angels living among us, the same can be said for Jesus, the son of god could be walking upon us.