Biography
John Bowman was a former Black Panther whom the Malcolm X Grassroots Movement submission identifies alongside Hank Jones and Ray Boudreaux as detained in August 2005 for refusing to testify before a grand jury investigating a 1971 San Francisco police killing. The submission describes indefinite contempt detention and alleges torture during the earlier 1973 investigation. It does not establish an exact admission day, a discharge date, a criminal conviction in the reopened investigation or a complete duration. The 2005 detention is separate from the historical investigation. Source: https://www.prisonlegalnews.org/media/publications/10.%20Political%20Prisoners%20in%20the%20United%20States%2C%20ICCPR%20Coalition%20Report.pdf#page=10
Sources
Richard Brown, who was detained in the same contempt proceeding, names Bowman among the five jailed and dates their actual release to October 31, 2005, when the grand jury expired. A contemporary support statement independently records that date. Bowman’s exact admission day remains unresolved.