BBCBreaking: 1 person arrested in #Watertown, close to Boston, as major police operation continues after officer killed at #MIT http://t.co/6lpXSRQ04V

BBCBreaking: 1 person arrested in #Watertown, close to Boston, as major police operation continues after officer killed at #MIT http://t.co/6lpXSRQ04V



via Twitter / BBCBreaking http://twitter.com/BBCBreaking/statuses/325119285418663937