Murder is the unlawful killing of another human without justification or valid excuse and committed with the necessary intent as defined by the law in a specific jurisdiction. This state of mind may,
Cain slaying Abel, by Peter Paul Rubens, c. 1600
A group of Thugs strangling a traveller on a highway in the early 19th century
In ordinary language, a crime is an unlawful act punishable by a state or other authority. The term crime does not, in modern criminal law, have any simple and universally accepted definition, though
Murder
…underlying felony is specifically listed in the definition of first-degree murder). Some jurisdictions also distinguish premeditated murder. This is the crime of wrongfully and intentionally causing the death of another human being (also known as murder) after rationally considering the timing or method of…
Human civilisations throughout history have universally considered murder to be a crime.