Biography
Mark T. Riley was a Vietnam-era war tax resister associated with Sacramento Meeting who was imprisoned at Terminal Island after altering his W-4 withholding form.
NWTRCC’s 1971 court-history entry lists a six-month sentence and a $500 fine for Mark T. Riley, while separately recording five months actually served. The year identifies indictment or initial court appearance, not the admission date. The fine is a monetary penalty, not additional custody, and neither the imposed sentence nor the table’s rounded month total sharpens the existing unknown custody endpoints. NWTRCC court history.