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
That is true, but I think they were just trying to take a shot (haha) at the US. Well deserved, for sure.
So only the last 2.
Also, they don’t mention the most obvious reason, meeting a murderer that didn’t get caught.
It is quite easy to murder someone if you take your time and are careful.
Most solved cases would be crimes of passion where the killer doesn’t care (at that moment)
And yes, partially, not ‘just only’ a shot at the despicable US gun culture and militarism