I don't believe I've proved beyond a reasonable doubt that the New Testament gospels are historically reliable. I do believe, however, that I've shown it is reasonable to regard these gospels as historically accurate.I've long argued that proof "beyond a reasonable doubt" - the standard set in criminal law - is not a rational standard to evaluate the historicity of the Gospels. Indeed, theologically it is impossible to do so. If the truth of the Gospels is proven beyond doubt, then there is no room for faith.
"Preponderance of evidence" and "most likely explanation" - the civil legal standard - is a far more reasonable standard to employ.
Lots of reading to do.