Remember Virginia and Michael Spivak, the sweet couple from Chevy Chase, D.C., killed by burglars in 2008? They had opened their home to Angela Hernandez-Rivera to care for their foster child. Hernandez-Rivera thanked them by teaming up with two men to burglarize their home. They also killed the Spivaks. She and one accomplice were convicted of murder and sentenced in May to 40 years.