Their graves will be side by side in the historic Virginia cemetery where so many members of their family are buried.
Erin Peterson, just 18, gunned down in her French class at Virginia Tech almost nine years ago.
And now, her father, Grafton Peterson, 57, who died last week of a heart attack. Might as well have been heartbreak.
Grafton never got over Erin's death, and neither did his wife, Celeste. Erin was "their compass," Celeste said recently as she prepared to bury her husband next to her daughter at Rock Hill Cemetery in rural Loudoun County on Saturday.
Grafton had been through a lot, suffering in private decades ago after Carla, his daughter from another relationship, died of cancer when she was 8. But his second devastation was much more public: He will be remembered as the father who refused to settle with Virginia Tech and the state after Erin was killed on April 16, 2007, by fellow student Seung Hui Cho in one of the deadliest mass shootings in U.S. history.