Omaha Police have identified the motorcycle rider who was killed in a weekend crash after failing to negotiate a corner in the road. Omaha police say 27-year-old David Plassmann of Bellevue died Saturday afternoon while out riding with others. The accident happened shortly after noon along John J. Pershing Drive near the Missouri River on the northeast edge of the city. Police say Plassman failed to negotiate a corner in the road, lost control and slammed into a tree. Some of Plassman's fellow riders and paramedics tried to revive him, but he died at the scene. Plassman was wearing a helmet.