John (surname unknown) is a terrorist and the accomplice of Sofia.
History[]
The two were planning a large-scale mass casualty attack in the U.S., with Sofia smuggling herself in with Louis and Mikey Pappas, two murders sex traffickers, as a cover. The father and son willingly assisted Sofia and their accomplice for bribes, dropping her off at their meeting place in an Amsterdam apartment complex regularly so the two could meet.
When the ring was broken up, Sofia was tracked to the building due to the detectives' surveillance of her activities, as the Pappas family wouldn't give up information without a deal. When Sofia was arrested and forced to give up information on the plan, she relented. Barging into their room, the bomber was found assembling the bomb at the very same moment. Trying to reach another unfinished component for immediate use, he was subdued and arrested.
The duo were found guilty and placed in federal prison for their crimes. (SVU: "Acceptable Loss")