What is the term used to describe an individual who has intentionally ended their own life?

The term used to describe an individual who has intentionally ended their own life is "suicide." This term is clinically and socially recognized as it reflects the act of taking one’s own life with intent. Understanding this term is crucial in both mental health contexts and law enforcement situations, as it helps to identify the circumstances surrounding the event and informs appropriate responses and support systems for affected individuals and communities.

In contrast, the other options refer to different aspects of suicide and mental health. "Attempted suicide" denotes a situation where an individual has attempted to take their own life but has survived. "Violent mental case" is not a recognized term in the context of mental health or suicide and thus does not accurately describe an individual who completes the act of suicide. "Coroner needed" suggests a procedural response to a death in general but does not accurately define the act itself. Thus, "suicide" stands out as the correct and specific term for the described scenario.