Tyrion's wedding to Sansa didn't have any deaths. Just a somewhat tense part where Tyrion drunkenly threatened to cut off Joffrey's dick.

How could he be an illegal alien if he was born here to a human mother?

Not sure that counts as a Bible adaptation. Most of the interesting stuff about Herod comes from Josephus, not the Bible. He makes a glorified cameo in the early part of the Gospel of Matthew and that's pretty much it.