Drew Peterson has moved his fiancee and her two young children into the Bolingbrook home he formerly shared with his missing fourth wife, Stacy, a relative and other sources say.
And Ernest Raines said his daughter, Christina, 24, has told him that her weekend move into Peterson's home is only the first step.
"She's planning on living there, and they're planning on getting married -- after he gets divorced," Ernest Raines said Monday.
Watch the father of Peterson's alleged fiancee talk about the relationship:
Watch an NBC report on a day in the life of Drew Peterson: