Hood says Wyoming officials briefly detained Jordan for a psychiatric evaluation. An examination of the boy showed no signs of abuse.
The boy was found dead Friday. Police say it appears he died of a drug overdose in a murder-suicide attempt.
Jordan's ex-husband says he's shocked by the accusations. He says she appeared to be a devoted mother.
The district attorney's office doesn't know whether Jordan has a lawyer.
Information from: New York Post, http://www.nypost.com