Who wouldn't want a sister like that?
Or a sibling like that? When she was in the car talking to her kids and the one in the front seat said he would do the same for his brother....then he also said how his mother sacrificed her life for her brother and she seemed surprised....well, he was right....she did do that!
To me, it spoke to devotion and loyalty. A lot of people would have helped fight their brother's conviction, but very few would have done as much as she did.