Ok sure, but a fair justice system should differentiate between intentionally killing someone and accidentally causing a death, right? Giving the same punishment to someone who kills their spouse because they cheated vs. someone who lost control of their car and crashed into a pedestrian would be extremely weird.
I think it already does
You should look up the definition of murder. Murder requires intent, otherwise it’s manslaughter.
Not everywhere
Ok sure, but a fair justice system should differentiate between intentionally killing someone and accidentally causing a death, right? Giving the same punishment to someone who kills their spouse because they cheated vs. someone who lost control of their car and crashed into a pedestrian would be extremely weird.