I see a sentence without further context:
John will prove to the world that Mahari was right.
I don't understand the meaning of that sentence.
Why does it say
Mahari was right, instead of
Mahari is right?
My reasoning is that:
Mahari has been dead while John has this intention.
If Mahari is still alive, maybe the sentence would be:
John will prove to the world that Mahari is right.
What do you think and why?