A 46 year old Shepherd man was killed yesterday morning when he was pulled under a bulldozer he had been operating. Crews were called to WDS Enterprises on E. Blanchard Road around 7:30 Tuesday morning. The prelim investigation indicates the man was pulled under the dozer, got out of that, went back into gear and started moving with nobody inside. It then struck multiple un-occupied semi-trailers. No additional injuries were reported.