A Baton Rouge man was indicted Thursday on a charge that he threatened to murder former New Orleans U.S. Attorney Jim Letten and “members of his (Letten’s) immediate family.”

In Baton Rouge, U.S. Attorney Donald J. Cazayoux Jr. said in a written statement that Gerald Estrade, 56, faces a charge that carries a possible 10-year prison term. The formal charge is threatening to murder a former federal law enforcement officer and/or his family members.

Cazayoux added that the case is under investigation by the FBI and that Assistant U.S. Attorney Jennifer M. Kleinpeter is the prosecutor. Kleinpeter is deputy criminal chief of Cazayoux’s office.

Cazayoux also said Estrade was taken into federal custody Tuesday.

In a telephone interview, Cazayoux said he could not comment further.

Estrade could not be located for comment Thursday.

On Dec. 5, 2011, Estrade was charged in 19th Judicial District Court in Baton Rouge with possession of cocaine, court records show.

Records of that case show that state District Judge Anthony Marabella Jr. sentenced Estrade on May 22 to a 13-month prison term on that charge.