Abigale marston dies of grief 3 years after her husband John marston is murdered by the US Army for no reason
*SPOILER*It is said that john marston needs to die at the end when he goes out of the barn because their is a lack of dead eye and ammo. However, i have been determined to see if i could save john because in the game Red Dead Redemption: Undead Nightmare, john is alive, and it is also supposed to be the future of Red Dead Redemption. Many other people have been trying to see if you can keep him alive, but nobody has succeeded at it.
Tuberclulosis
Assuming you don't mind being given a spoiler, read below: Yes he is meant to die, it is part of the story. After, you play as Jack Marston, and most people will want to complete the game 100% and get all the achievements and trophies. The only story involved mission you do as Jack Marston is what's called "Remember my Family" and is found in Blackwater marked by a question mark as if it were a stranger mission (which is technically what it is). All the outfits, mounts, stranger missions, challenges and everything else will still be available as Jack Marston.
They don't show you.
I would say Undead Nightmare is a DLC because you die in The 1st Red Dead Redemption...
Roger Marston died in 1303.
Charles Marston died in 1946.
John Westland Marston died in 1890.
Marston Morse died on 1977-06-22.
John Westland Marston died in 1890.
John Marston - cricketer - died in 1938.
William H. Marston died in 1926.