A Good Samaritan and a police officer from Chesterfield are being credited with saving the life of a high school girl Thursday morning after her car went off the road, ran down an embankment, and landed in a creek in the St. Louis suburb. The 17-year-old was taken from her submerged car by Daniel Williams. Officer Dennis Struebing revived her using C-P-R. The teenager was the only person in the car. She’s reported in serious, but stable condition.