Zwernemann had claimed his sixth heavy bomber and one P - 51 in the space of little more than 60 seconds before he himself was shot down by two P - 51s .
Among those killed in action was Josef Zwernemann .
Josef Zwernemann had claimed Josef Zwernemann 's sixth heavy bomber and one P - 51 in the space of little more than 60 seconds before he himself was shot down by two P - 51s .
Among those killed in action was Josef Zwernemann .