Red Dead Redemption Episode 26: The Last Enemy That Shall Be Destroyed

"Uncle yells for John from outside. John knows what's coming, so he immediately tells Jack to run into the house and lock all the doors and windows, and not to come out "no matter what".
"A man, with a striking resemblance to John, looks down at the burial site, putting Marston's hat on and revealing himself to be the nineteen-year-old Jack Marston on the hunt and ready to track down Edger Ross."