BOSTON – Earlier today, an indictment was unsealed charging a Massachusetts man for allegedly obstructing an investigation into fires set at Jewish-affiliated institutions in Arlington, Needham and Chelsea, Mass. in May 2019. Alexander Giannakakis, 35, formerly of Quincy, Mass., was arrested by Swedish authorities in a Stockholm suburb, at the request of the United States. Giannakakis was indicted by a federal grand jury in Boston for making false statements in a matter involving domestic terrorism; falsifying, concealing and covering up a material fact in a matter involving domestic terrorism by trick, scheme and device; concealing records in a federal investigation;...