Joseph Kelly and Charles Marshall, two members of the "Seattle Seven," lectured on the Vietnam War. Arrested in 1970 for “conspiracy to incite a riot,” after a violent anti-war protest in Seattle in which 20 people were injured, the seven defendants had repeatedly disrupted their trial, forcing the judge to declare a mistrial, after which he cited them for contempt of court and jailed them.  They served three months of their six-month sentences.