hamlets journal

I know something noone else knows.
But how do i show everyone what i know.
But most of all how do i prove it?
My father came to me lastnight and told me that his own brother was the one who killed him.
It was hard for me to belive.
So how am i going to be able to make others?
I don't know how i am going to go about this but,
I know i won't let my father down.
I will prove that he is the one who murdered my father.
If it is the last thing i do.