June 4
As a family on June 4, 2002, the Smart family went to an awards ceremony at Bryant Middle School. This was the middle school the kids attended. When they came home and got ready for bed, Ed checked that all doors were locked. However he didn’t turn the alarm on. “If the children got up and moved [in the night], it would set the alarm off. And so we just said we’re not going to bother with it,” Lois would later explain.

June 4