Some do.

Soldiers who killed enemy soldiers

Starting to get more likely in Eastern Europe now than the US I’d say. Never know when you might run into a former Russian or Ukrainan soldier.

People who killed in self defense

Probably less likely outside of the US since no guns, but assault is still a thing and you can kill an assailant without a gun.

Doctors and nurses who have made mistakes that accidentally killed patients

This is universal.

People who killed people in accidents such as driving accidents or hunting accidents

So is this.