Charges will be filed at Gitmo again. (Creative Commons)

Families of 9/11 victims received letters Monday from the Office of Military Commissions informing them of the impending charges and notifying them that they may be called upon to serve as witnesses as trials get underway, according to NBC News.

The letter indicated that the charges will include “conspiracy, murder in violation of the law of war, attacking civilians, hijacking aircraft, and terrorism,” said AFP News, which obtained a copy of the letter.

Charges were originally filed against the five men at Guanatamo in 2008, but were dropped by the Obama adimistration in the wake of negative publicity about aggressive interrogation tactics at the Cuba military base.

However, the administration’s effort to have the individuals tried in a federal civilian court in New York City was widely renounced, including by New York mayor Michael Bloomberg.

Blaming congressional Republican opposition, the administration reversed its decision in April and will organize military tribunals for the suspects back at Gitmo.

Khalid Sheikh Mohammed, who confessed to spearheading the 9/11 attacks in 2007 after four years of imprisonment and interrogation, is expected to plead guilty to the charges. He and four other men, Walid bin Attash, Ali Abd al-Aziz Ali, and Mustapha Ahmed al-Hawasawi all said they would plead guilty when charges were originally filed against them in 2008.

A judge will be appointed, and a panel composed of military officials will make up the commission that will hear the tribunals, reports say.

The suspects are currently being held at Guantanamo.

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