New court documents reveal a rural Alaska couple suspected of terrorism had a detailed hit list and had already started planning how to reach their targets.
Paul and Nadia Rockwood of King Salmon, Alaska, plead guilty to lying about the list of 20 names and making false statements to the FBI.
Seven military members, a media personality and leaders of two religious organizations were on the list. Before their arrest, authorities said the couple had moved to the "operational" phase of their plan.
"With some, this included discussing the use of mail bombs and the possibility of killing targets by gunshot to the head," federal attorneys said.
"This was not a case of 'if', but a case of 'when' with the 'when' becoming more likely with Rockwood's departure from King Salmon," government officials added.
Prosecutors said Paul Rockwood converted to Islam and became radicalized after listening to teachings by wanted terrorist Anwar al-Awalki.
Under their plea agreement, Paul Rockwood will serve eight years in prison and three years probation while Nadia -- who is pregnant -- will serve probation.
Sentencing is scheduled Aug. 23 in U.S. District Court in Anchorage.