Bernard Goetz shot a number of men who had cornered him on a train. Race, class, education; all of the zeitgeist hot buttons were at play. We’ve spent nearly forty years hearing A) nothing or B) condemnation of Goetz. Those who lived through the coverage at the time (me), who were old enough to really consider the arguments at play (me, not so much), and who at any rate were paying attention (definitely not me) will probably have a different memory of the thing than those who have learned of it more recently, or less directly.
Bernard Goetz insisted on testifying/confessing because he wanted to make his argument.