Officer Jacob Schwenk did just so.

Schwenk approached the vehicle to talk to the suspect and as he got near, Quinn exited the car and pulled out a 9mm handgun and began firing, McGee said. Schwenk was shot six times — once in the chest and five times in the legs — and fell to the ground in a seated position. Schwenk managed to return fire at Quinn, hitting him six times — including twice in the face — killing him, McGee said.The whole incident lasted about ten seconds, according to David. Schwenk then radioed to dispatch that there was an officer down and emergency crews quickly responded to the scene. McGee said fellow Leland Police Officer Charles McGee applied a tourniquet to Schwenk’s leg which was a critical step in saving his life after his femoral artery was damaged. “That was instrumental in saving Officer Schwenk’s life,” McGee said. “Officer Schwenk, who he himself was a former EMT, talked Officer McGee through the process of applying the tourniquet…slowing the bleeding.”

Source: Leland cop cleared in deadly officer-involved shooting – | WBTV Charlotte

And a bit more info on the condition of the attacker:

Investigators found that Quinn fired six shots at the officer, one hitting Schwenk’s bullet-proof vest, and the five others striking the officer in the legs. Schwenk’s returning fire struck Quinn six times — twice in the head — killing him.

Source: Dashcam video shows man firing at Leland police officer

I am not clear who had the tourniquet, but at least somebody did and a life was saved.

Officer Schwenk was shot in the chest, the vest stopped it but it still hurts like a bastard, he got shot in the legs and you know that hurts too. Yet he remained in the fight because otherwise I do believe the shooter would have finished him off.

Short of a shot going inside the cranium or hitting the spinal cord, you can go on fighting till your blood supply stops feeding the brain. Training to shoot as accurately as possible under stress and pain, knowing what to do to stop the hemorrhage and have the tools at had made the difference and a good man is alive because of it.

Hat Tip to Stevie A.