WEST DES MOINES, Iowa (Via KCCI) — Police say a good Samaritan suffered serious injuries in a crash in West Des Moines.  The crash happened just before noon. Officers say a man was helping a semi-truck driver who broke down on Highway 5 at Veterans Parkway. One car slowed down, but another did not, slamming into the car, which then hit the pedestrian.  His condition has not been released.