There, authorities found a 16-year-old female victim suffering from non-life-threatening injuries.
Tumwater Police Department spokeswoman Laura Wohl said it is unclear whether the gunman was ever inside the store or if shots were fired inside, The Olympian reported.
Laura Wohl, a Tumwater Police spokesperson, said the gunman shot the owner of the vehicle he was trying to steal.
As the suspect tried to take a second auto a "bystander here in the parking lot shot the suspect", Wohl said.
Witnesses say one of the armed civilians grabbed a medical kit and rendered aid to the man who was shot by the suspect in the carjacking attempt.
While police say the shots happened outside the Walmart, witnesses say they could hear the shots from inside the store.
Wohl said a man was shot when the gunman tried to carjack his vehicle. That gunman was killed by an armed civilian in the Walmart parking lot. "And as he tried to hijack a second auto, a citizen who was in the parking lot took his gun and shot the suspect".
While police were searching for the suspect, they believe the suspect shot a man while attempting to carjack him in the parking lot of the Walmart. There are no other suspects in the carjacking incidents or reported shootings.
Police did not identify any of those involved in the incident or the type of weapons used, except to say they were handguns.
India welcomes Trump-Kim summit; calls it 'positive development'
Regarding Trump's surprise announcement that he would put a stop to regular joint ROK-U.S. military drills, Nam said the issue required discussion between the two countries.
The action inside the store set off fears of a possible mass shooting.
"There were three civilians going after him to shoot him and two of them had their guns up and then the third guy shot him through the window of the auto", she told KIRO-TV.
Another witness told KIRO her husband watched the shooter "take his last breath" after being shot by the armed citizen.
Brian Adams of Olympia said he was picking up pool supplies when he heard the shots and saw people running. When she got outside, she said she heard more shots.
According to a police spokesperson, the call began as a DUI suspect call.
Another woman who was shopping with her children told the network that they all fled the shop and hid behind a parked vehicle.
"He is a hero", Adams said.
She said about that time the neighboring Costco store started evacuating its customers.