I think that the two possibilities are possible.
If he did existed there are many questions :
1.Who was his father ? (Joseph , Panthera [we find that in the Talmud therefore this is rather few reliable but maybe that this is true] , Parthenogenesis , another person etc...).
2.He believed really what he said or he was a manipulator ?
3.If he was crucified did he survive to the crucification ?
4.Where are from the belief to his ressurection ?
5.Ask others questions.
If he did existed there are many questions :
1.Who was his father ? (Joseph , Panthera [we find that in the Talmud therefore this is rather few reliable but maybe that this is true] , Parthenogenesis , another person etc...).
2.He believed really what he said or he was a manipulator ?
3.If he was crucified did he survive to the crucification ?
4.Where are from the belief to his ressurection ?
5.Ask others questions.
