The more mature one managed to get via it and dwell a fairly normal life, but the young sister was so warped by the abuse that she tried out to molest a small lady and then killed her when she freaked out. But later on they uncover that she experienced a "stillbirth" a pair years prior, and Benson confronts her with that - and the female blurts out that her father was also THAT baby's father, and she'd really killed that little one herself.