You thought the FO rising from the crippled Empire was bad?

[Vader] betrayed and murdered your father

This implies Luke’s father was alive before that. How did we go from this to Vader killing him? Vader killing him is a direct contradiction of the fact that he was alive. Plot hole!

(Not including info from ESB or anything else, just treating ANH as a standalone in this specific post)

Mod Edit (6th Sept): the title has had ‘(not really - more of a WUM / troll post)’ added to it for clarity on the purpose of this thread.