December 21, 2020 Joseph Marvin Swann, 39, of Waldorf UPDATE 12/21/2020: Joseph Marvin Swann, 39, of Waldorf, appeared in court for a bond hearing on Monday, December 21, 2020 at 1:00 p.m., and remains in jail on a no bond status. Swann has a court date scheduled for March 5, 2021, at 3:30 p.m. UPDATE 12/21/2020: Joseph Marvin Swann, 39, of Waldorf, was charged with 4 counts of second degree assault, Swann is currently being held at the St. Mary’s County Adult Detention and Rehabilitation Center on a no bond status. Swann will appear in court for a bond hearing on Monday, December 21, 2020 at 1:00 p.m. In serious or fatal motor vehicle accidents most police won’t charge a suspect until an exhaustive investigation is completed. Often that includes a full accident reconstruction and laboratory blood and toxicology tests. Investigators want to have all details of the case meticulously documented before filing charges because the legal principal of double-jeopardy does not allow them a second chance to get it right if mistakes are made.