Definition
A *murderer* is someone who commits the act of murder, unlawfully killing another person. They are the active perpetrator of a violent crime. Think of them as the antagonist in a crime story, the one responsible for taking a life. A *murderer*'s motives can vary widely, from greed to revenge to mental illness. The term carries a strong negative connotation, reflecting the severity of the crime. Their actions often result in severe legal consequences, including imprisonment or even the death penalty.