He also faces a state trial, tentatively scheduled for April 6, on related charges.
At trial, the suspect was charged by the state with capital murder and related charges, not terrorism.
As part of her plea agreement, other related charges will be dismissed.
A criminal court would have to hear any related criminal charge.
And it paid $265 million to settle civil lawsuits filed by insurance companies on related charges.
A fourth is awaiting trial on related charges later this month and a fifth was arrested last week.
Looking for another related charge, she meets April, one of his prostitutes.
The prostitute pleaded guilty last fall on related charges in state and federal courts.
In addition, two other marines have been implicated on related charges.
At least five other people, including a lawyer and a court employee, are expected to be arrested on related charges, officials said.
