Four days before Christmas in 1992, two sisters, nine-year-old Nicole Schoo and four-year-old Diana, knocked on a neighbor’s door in Chicago. They were freezing, frightened, and completely alone. Their parents had boarded a plane to Acapulco for a nine-day vacation, leaving the girls behind with frozen meals, written instructions, and no adult supervision.

As days passed, the situation inside the house spiraled. A blaring fire alarm and an overflowing bathtub finally forced the children to call 911. What police found shocked the nation. There was no babysitter, no emergency contact, and no way for the girls to reach their parents. Investigators soon learned this was not a mistake. The children had been intentionally left alone.

When David and Sharon Schoo returned from their tropical trip, police arrested them at the airport. As the case unfolded, allegations of prior neglect and abuse emerged, raising serious questions about how the family had gone unnoticed for so long.

The fallout changed the law. Public outrage led Illinois to pass the Home Alone Bill, clearly defining when children can legally be left unsupervised. Nicole and Diana were removed from their parents’ custody, later adopted, and have remained out of the public eye ever since.

This is the real life Home Alone case that ended with a law meant to protect children nationwide.