What did terrorists try to steel from Emmett doc brown?

Libyan terrorists or the Libyan Nationalists

Emmett "Doc" Brown was a main character played by Christopher Lloyd in the "Back to the Future" movies.

Make was Delorian, model was DMC-12, which is the only model the Delorian Motor Company made before going bankrupt. Note, the Mr. Fusion unit was not a standard accessory.

He was the Prime Minister of Britain, and during his term in office there would have been invasion troops from Britain involved in some conflicts, but he would not be regarded as a terrorist.

Yes because he was going to steal guns from the armory and give them to the slaves. This would scare the South.