In your opinion what causes christians to believe in Jesus

[Sheldon]

It's certainly bad science practice. It may be useful in a courtroom, but that's not exactly a great endorsement.

How incredibly sad. There it is. Mask off.

That ends our little engagement Johnny. I don't converse with people who don't care about evidence or think it's a bad thing.  

You've thrown away what little credibility you have. It's quite disheartening too.

 I can't tell people what to do but if anyone continues to have any discussion with you its in my opinion a grave error on their part and their time would be better spent teaching a goldfish Algebra.

Final score;  Me:36  Johnny:0

It occurred to me some time ago, that John was simply making up more and more outrageous lies, in the hope everyone would stop challenging his nonsense, so he could slink quietly away and pretend that he'd had the last word. 

I could be wrong of course, unlike John, I am capable of doubt.

As far as the thread title question goes, well we have at least one religious apologists answer, he believes Jesus is a deity, because he don't base beliefs on evidence, and thinks subjective beliefs are just as reliable. 

I'd love to see him debate a flat earther, it might be quality entertainment.