4 Americans , including its ambassador to Libya , died in a 2012 attack on a mission . Obama has said that ' Abu Khatallah was ` ` one of the masterminds '' of the attack . Abu Khatallah was killed by U.S. forces , Obama said this month in Washington . He 's spent most of the past two weeks aboard the USS New York being interrogated by the FBI-led High Value Detainee Interrogation Group , known as HIG , that includes agents from the FBI , CIA and the Defense Intelligence Agency . He 's expected to be prosecuted in a federal court in Washington .
4 Americans , including its ambassador to Libya , died in a 2012 attack on a mission . Obama has said that ' Abu Khatallah was ` ` one of the masterminds '' of the attack . Abu Khatallah was killed by U.S. forces , Obama said this month in Washington . He 's expected to be prosecuted in a federal court in Washington .