- March 16 – After drunkenly injuring 28-year-old cyclist Ya Wen Su on Wiehle Avenue in Reston and being released on bond, 45-year-old Cynthia D. Paulson commits suicide in the bathtub at her home at 9717 Mill Run in Great Falls.
- Smith, Leef. "Va. Traffic Tragedy Takes Turn for Worse; Cyclist Maimed; Driver Kills Herself." The Washington PostMar 18 2003. ProQuest. Web. 3 Feb. 2017.
|Fairfax County by Year: 2003|
|February 2003||·||March||·||April 2003|