Christine Banfield

Christine Banfield plans a fun day for her four-year-old daughter with a trip to the National Zoo with her Brazilian au pair, Juliana Perez Magaliz.

They leave their Fairfax County, Virginia home, but turn around when Perez Magaliz realizes she forgot their bagged lunches.

Arriving at the house, the au pair sees a car she doesn't recognize and a man she doesn't know entering the house.

Confused, she calls her employer, Brendan Banfield, who tells her to stay in the car.

He will get there right away.

Banfield is at the house in minutes and they enter the house together.

The au pair takes the four-year-old girl to the basement while Brendan Banfield goes upstairs to the master suite.