New Jersey Statutes Appendix - Former Title 3A Administration of Estates Decedents and Others 3A § 38A-8

A surviving spouse who intentionally kills the decedent is not entitled to any benefits under this act.  A final judgment of conviction of intentional killing is conclusive for purposes of this section.  In the absence of a conviction of intentional killing the court may determine by a preponderance of evidence whether the killing was intentional for purposes of this section.