The Boston Marathon bombings showcased Twitter as a source for real-time citizen engagement between authorities and the public. When the Boston police Twitter handle, @Boston_Police, announced, "CAPTURED!!! The Hunt is over. The search is done. The terror is over. And Justice has won. Suspect in custody," the city of Boston and the watching world took a deep sigh of relief after following the 48-hour search for bombing suspect Dzhokhar Tsarnaev online in real time.