Do you have any sources, aside from the gospels, that claims Pontius Pilate had Jesus killed for claiming divinity?
***I need to do an oops here. I thought you said, “Do you have any sources, aside from the gospels, that claims Pontius Pilate had OTHERS BESIDES Jesus killed for claiming divinity?”
So I’ll begin addressing your original question. Yes, there are multiple sources asides from the gospels. If you read the book I suggested, you’ll find them. There is one significant source, a circular letter from the Sanhedrin (note that Sanhedrin records themselves were utterly destroyed by the invading Romans) and several other sources cited by Josh McDowell in “Evidence that Demands a Verdict”.
So you admit that sanhedrin records are not available. That is a start.
Lucian of Samosate: Greek satirist later half of 2nd century spoke scornfully of Christ and the Christians but never argued that Jesus never existed. “The Christians, you know, worship a man to this day, the distinguished personage who introduced their novel rites, and was crucified on that account...
Of course satire is a form of humor. Satirists would never let facts get in the way of a good joke. Besides, he is no eye witness. He was born after any putative Jesus would be dead. I can hear the satire dripping from his ‘distinguished personage’...
But this testimony is not by an eye witness. Rather, he reports the common rumor, years later. If you accept this testimony, you have to accept the term 'enormities' for the early Christians.