Police today shot and killed a man they say was responsible for a pair of early morning shootings in Groveport and Grove City. Police say 47-year-old Danny Thornton was shot and killed in the parking lot of a store near Easton Town Center in an exchange of gunfire with officers. One officer was wounded and taken to a local hospital. Police say Thornton shot and wounded a woman in a dentist's office in Groveport, and shot and wounded a 9-year-old child at a home on Independence Way in Grove City. Both victims are being treated at local hospitals. Highland Park Elementary School on Cameron Street was placed on lockdown this morning as a precaution. The school is a block west of Independence Way.