(born 1943), U.S. Marine officer, born in San Antonio, Tex.; served in Vietnam War 1968–69; instructor in basic training at Quantico, Va., 1969–73; posted at Naval War College in Newport, R.I. late 1970s; on National Security Council staff 1981–87 when fired for role in diverting profits from arms sales to Iran to Nicaraguan rebels (contras); after 3-month trial (1989), convicted on 3 of 12 criminal charges and given 3-year suspended sentence, fine, 2-year probation, community service; ran unsuccessfully for U.S. Senate (from Va.) in 1994