RT Journal Article SR Electronic T1 The Slayer Statute and Insanity JF Journal of the American Academy of Psychiatry and the Law Online JO J Am Acad Psychiatry Law FD American Academy of Psychiatry and the Law SP 258 OP 262 VO 38 IS 2 A1 Jennifer Piel A1 Gregory B. Leong YR 2010 UL http://jaapl.org/content/38/2/258.abstract AB It is common law that persons cannot benefit from their crimes. For this reason, most states have enacted slayer rules that prevent a killer from sharing in the victim's estate. However, terms in the slayer rules, such as willful and unlawful, can be difficult to apply, as illustrated by the situation in which a slayer is found not guilty by reason of insanity. The Washington Supreme Court has recently addressed whether a man who killed his mother and was then found not guilty by reason of insanity in criminal court can inherit a portion of his mother's estate.