St. Louis police are investigating the shooting death of an 11-year-old girl, the second child to be shot and killed in the city in two days. On Tuesday, Police said Charnija Keys was shot in the head Monday night. They are calling it a “suspicious death,” and homicide detectives and child-abuse investigators are handling the case. No arrests have been made, and no other details were immediately released. A 3-year-old girl was killed Sunday night in a drive-by shooting. A second child was critically injured in that shooting. There have been no arrests.