Darius was the brother of Amanda Graystone. He died in a car crash on Caprica, which his sister survived. The accident caused Amanda to experience a nervous breakdown, during which she had constant visions of Darius. She spent two and a half years in the Delphi Convalescent Institute recovering. Years later, Amanda began seeing visions of Darius once again, and together with Sister Clarice Willow began to wonder if the visions were actually a sign of some kind. This thought was prompted by the realisation that the were accompanied by several coincidences - Amanda's sighting of Darius at the scene of a car crash in the streets of Caprica City, and the institute she stayed in sending her a letter asking for donations.