Old people who live alone sudden death Why the brothers and sisters can also inherit?

Old people who live alone sudden death Al stepdaughter home runs Why the brothers and sisters can also inherit? Many years ago with the inheritance of disputes involving the death of the old man's stepdaughter and always take care of her brothers and sisters. The old man died suddenly, failed to find a will. But the old man died and left the handwritten letter, but clearly recorded the temperament of the old man and the loneliness and fear in her life had appeared, also become the plaintiff in the inheritance disputes the claim for court...