A Ponca City woman, Danielle Layman, charged last year with trying to hire a person to kill her former husband plead guilty yesterday to possessing the toxin ricin.

According to the plea agreement, Layman pleaded to knowingly possessing the toxin and that its possession wasn’t registered with the government. Prosecutors will dismiss the murder-for-hire count at sentencing.

Federal prosecutors filed charges in July 2017 that alleged Layman tried to hire another woman in a murder-for-hire plot against Layman’s ex-husband, who lives in Israel.

A grand jury indicted Layman — who also goes by the names Samantha Dowry, Danielle Givati Dana Abecassis and Danielle Bonaparte — in August on one count of using interstate communications to commit murder. Last October, a grand jury added one count of ricin possession without proper registration.

Ricin is a poison found in castor beans and can be fatal if ingested, inhaled or injected. Ricin poisoning has no known antidote.