Justin Fairfax in 2019. He served as Virginia’s lieutenant governor from 2018 to 2022.Credit...Parker Michels-Boyce for The New York Times

Mr. Fairfax, a Democrat, served as lieutenant governor from 2018 to 2022. The couple's children were home at the time, the police said, and their son called 911.  Justin Fairfax, a former lieutenant governor of Virginia, fatally shot his wife, Cerina Fairfax, and then killed himself at their home in Annandale, Va., shortly after midnight on Th...