Did LE find the newly-purchased baby food and wipes in the house when they began searching for Lisa? If they're missing along with her that would be odd indeed. If these items are missing, what about the Festival Foods bag they came home from the store in? There should have been one or more empty Festival Foods bags somewhere in the house -- either still holding the baby items or in the garbage or recycling.
I agree with previous posts, it's not any more unusual for a mother to buy wine than a father.
I agree with previous posts, it's not any more unusual for a mother to buy wine than a father.