You still haven't provided evidence. Did you just simply believe the person without evidence? Why is the holocaust illegal to investigate? What is it like to be gullible?

Moreover, why overlook the Jewish inordinate role in the mass murder of milliions of Europeans during their time as Bolsheviks.

Did that missing family died of over indulgence of sexual pleasure due to masturbation machine? Did you know the Schlindler's List is based on a book that is a work of fiction?

I'm might as well take the approach and say my grandfather told me the holocaust didn't happen because you're insistent on using an anecdote from a family member.