The Slayer Rule: An Empirical Examination

This study is the first to empirically test key assumptions underlying the slayer rule. Over a thousand survey respondents answered the question “What’s fair?” or “What would the decedent want?” in twelve different scenarios. Some of the most significant conclusions are that the slayer rule should not apply to assisted suicide, killings in self-defense, or killings due to mental illness. On the other hand, the slayer rule should be expanded beyond murder in some circumstances, such as elder abuse and neglect.

And the slayer rule should be converted from a mandatory rule into a default rule, which testators could opt out of in their wills. Carefully probing what people think about the slayer rule illuminates its many aspects and points toward needed reforms.