When Patricia Nazzal videotaped a congressional motorcade passing her car on Interstate 70, she ended up documenting a fatal crash just ahead of her. Maryland State Police said one person was killed Wednesday morning in a four-vehicle crash as other motorists stopped for the motorcade on westbound I-70 at the ramp from northbound Interstate 270. Police had not released the identity of the person who died as of late Wednesday night. The motorcade was part of a trip by U.S. Senate Democrats to Shepherdstown, West Virginia, where they gathered Wednesday for a retreat. Authorities did not say who was in...