A Libyan bombmaker now faces terrorism-related charges in the United States 32 years after a bomb aboard Pan Am Flight 103 went off, killing 270 people, including 35 Syracuse University students, Attorney General William Barr announced Monday morning.

In an indictment filed with the U.S. District Court in Washington, D.C., Abu Agila Muhammad Mas’ud Kheir Al-Marimi is alleged to have made the bomb at the behest of top Libyan intelligence officials. He was first interviewed by Libyan authorities in connection with the bombing in 2012, after the fall of General Muammar al-Qaddafi. Evidence shows that al-Qaddafi thanked those who carried out the attack that was aimed at the United States, Barr said.

"No amount of time or distance will stop the United States, and its partners in Scotland, from pursuing justice in this case," said Barr.

Barr also alleged that Mas'ud was involved in a 1986 bombing at a Berlin dance club that killed two American servicemembers.

"At long last, this man responsible for killing Americans and many others will be subject to justice for his crimes," said Barr.

Mas'ud remains in Libyan custody, according to Barr, but the U.S. government hopes to work with the Libyans to have Mas'ud face justice in the U.S., and secure all evidence for the trial.