A more accurate phrasing might be “Darth Vader consumed your father...”
or more dramatically, “Since the rise of Darth Vader, your father is no more”
How about “Anakin Skywalker was a petulant whining teenager Jedi who always complained, while Darth Vader was a badass bad guy who never complained, just killed anyone who got in his way. They were nothing alike”? I think that would have better explained it.