meanwhile, the escorts, searching for u-boats outside the convoy perimeter, found "u-100" around 1.30am moving in on the surface. she dived, but "walker" attacked with a depth charge pattern at close range. "u-100" evaded further damage, and surfaced, to be sighted and rammed by "vanoc" just after 3am; schepke was killed when "vanoc" smashed into his periscope structure and "u100" went down with most of her crew.