Lucifer is Jesus, if you go back to my threads such as this:
This:
This:
And This:
You will see the dates (especially of the latter 2) completely supercede his own. I have even evolved the theory far more, understanding that Lucifer/Jesus is also Allah and Samael as things progress, if Jesus and Lucifer really existed (so therefore, Islam wouldn't be entirely true but could be part of a true storyline).
I also notice that Satan is actually God of the Old Testament, something which Stephen fails to do. My theory also explains why Jesus was the enemy of the Devil but God himself/herself/itself is never actually held as the enemy of the Devil, during the New Testament at least.