Colloquially, 'murderer' is a term used to emphasis the act of killing. It is only challenged when someone requires defending the actions of another by pointing

Colloquially, 'murderer' is a term used to emphasis the act of killing. It is only challenged when someone requires defending the actions of another by pointing out that murder is a legal term. An unnecessarily pedantic deflection at best. People that use the term murderer already know that the state wouldn't get a conviction.