(St Charles County, MO) -- A man and woman from West Des Moines are dead after a crash near St. Louis. The Missouri State Highway Patrol says 59-year-old Steven Anderson and 61-year-old Kristi Anderson were in a crash around 2:30 Sunday Morning in St. Charles County Missouri. The Patrol says Larry Larson of O'Fallon, Missouri was driving a Chevy Corvette that rear-ended the Anderson's Toyota Prius, then went off westbound I-70 and into a ditch, near Lake St. Louis Blvd. Larson was not injured. He's been arrested on suspicion of driving while intoxicated.