What is Murder–suicide?

Note: Varies by jurisdiction

A murder–suicide is an act in which an individual kills one or more people before killing themselves. The combination of murder and suicide can take various forms:

Suicide-lawful killing has three conceivable forms:

Many spree killings have ended in suicide, such as in many school shootings. Some cases of religiously-motivated suicides may also involve murder. All categorization amounts to forming somewhat arbitrary distinctions where relating to intention in the case of psychosis, where the intention is/are more likely than not to be irrational. Ascertaining the legal intention is inapplicable to cases properly categorized as insanity.