Photo: Getty Images BOSTON ( WBZ NewsRadio ) — A former Quincy resident is under arrest for allegedly obstructing an investigation into fires set at Jewish-affiliated institutions in Massachusetts back in May of 2019, according to U.S. Attorney Rachael Rollins. Alexander Giannakakis was arrested by Swedish authorities in a suburb of the capital Stockholm after a request by federal authorities in the U.S. He was indicted by a federal grand jury for making false statements and concealing evidence and records during a federal investigation involving domestic terrorism. In February of 2020, Giannakakis' younger brother was the prime suspect in an...