BOSTON—The brother of a man suspected in four arsons involving Jewish institutions in the Boston area in 2019 pleaded not guilty in federal court Thursday to charges that he obstructed the investigation.
Alexander Giannakakis, 37, formerly of Quincy, Massachusetts, was working in security at the U.S. embassy in Stockholm, Sweden, when he was arrested by Swedish authorities in 2022. He was recently extradited.
