Same plant, at least to most of us. This is one of those Crotons where it appears it was given two different names very early on. There's even a Satan and an Irene Kingsley in The Book. Again, many of us believe they are the same. I think it was Jesse Durko who called it "Irene Kingsley, the Satanic Bitch".
My original cutting, by the way, came from the Satan that Jessie photographed for The Book.