A pair of carjackings and a chaotic hunt for a suspect ended with the shooting death of an armed man by a civilian in the parking lot of a Walmart superstore in Tumwater, according to police and witnesses.Tumwater Police spokeswoman Laura Wohl said the driver of a car the suspect was attempting to carjack was also shot. He was transported by air ambulance to Harborview Medical Center, 60 miles to the north in Seattle. Susan Gregg, a spokeswoman at Harborview, said the man was in critical condition.A third victim, a 16-year-old girl was injured at another location, near Tumwater High School, but was not seriously hurt, police said. Wohl did not know whether the girl had been shot.Police did not release the identities of the victims or the suspect.Wohl said the chaotic string of incidents began just before 5 p.m. with a report of a possibly intoxicated, erratic driver near Tumwater High School. Wohl said that while police were en route there, the department received reports of a carjacking and shots fired at a nearby intersection. That is when the 16-year-old was injured, police said.While officers were attempting to locate that vehicle, police received reports of additional shots fired at the Walmart, where the suspect reportedly abandoned the first stolen car and tried to carjack another vehicle. When the driver wouldn’t give him the car, Wohl said the man shot him. The suspects was apparently trying to carjack yet another vehicle when an armed civilian intervened and shot the man, Wohl said.