Empty Tomb Puzzle

[oxymoron]

1)Very very few writings from the ancient world would qualify as a historical treatise by today's standards.

I guess this is why they are ALL not taken as, ahem, gospel.

2)To say they were sythesised and edited is pure speculation on your part.

Hardly a bizarre speculation, though, given that the authors remain broadly anonymous, some of the content seems plagiarised, yada yada. Certainly not as bizarre as suggesting that "very few writings...qualify as a historical treatise" therefore you should believe the garbage within as rationality-trumping fact.

3) John was made independent of the Synoptics. Each is a contemporary source for the other.

And written in 90-100AD by someone - identity unknown - who was not an eyewitness to anything. Not even remotely a credible source.