Not just uncaught murderers, there are a lot of people who have killed without legally being considered murderers.
People who killed people in accidents such as driving accidents or hunting accidents
People who killed in self defense
Soldiers who killed enemy soldiers
Executioners
Police officers who have killed on duty
Doctors and nurses who have made mistakes that accidentally killed patients
I had a co-worker at one of my first big boy jobs working for a hospital, and this guy was weird as weird could be.
He was an older man, probably in his late fifties at the earliest, and we worked in the IT department, and he would blast Avril Lavigne music non-stop.
To make this worse, he wouldn’t stop even if you asked him to, and he didn’t talk to people, he was rough, he was mean, he was grouchy, he was unapproachable.
About a year after I started, he disappeared one day.
I asked my co-workers about him, and the truth finally came out.
Apparently, about six months before I started, he had gotten into a car accident and killed two people in the car accident, and he was found at fault for drinking and driving.
The reason he was not in jail at the time was his trial was still going through, and the weekend before he disappeared, his trial commenced, he was found guilty and he was sentenced.
And, yeah, as far as I am aware, he is still in jail today if he’s still alive.
About a year later, one of my other co-workers was murdered by his wife and their pastor, and it became nationwide news.