WASHINGTON (AP) — U.S. special forces seized a “key leader” of the deadly Benghazi, Libya, attack and he is on his way to face trial in the U.S. for the fiery assault that killed the U.S. ambassador and three other Americans, the Obama administration announced Tuesday. It was the first breakthrough in the sudden overseas violence in 2012 that has become a festering political sore at home.

President Barack Obama said the capture on Sunday of Ahmed Abu Khattala sends a clear message to the world that “when Americans are attacked, no matter how long it takes, we will find those responsible and we will bring them to justice.”