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"Update: We're continuing to compile real-time updates of this incident on a Storify here.\nConfusion reigned in Watertown, Mass. late Thursday night after a campus police officer was shot and killed at MIT in nearby Cambridge. A carjacking followed by a massive police operation ensued in Watertown, with multiple reports of gunfire and explosions in several locations. At least one suspect is said by police to still be at large, armed and extremely dangerous.\nUPDATE: Multiple police sources have stated that the shooters in tonight's incidents are strongly suspected to be the Boston Marathon bombing suspects.\nThe best place to follow the news as it unfolded: Twitter. Several reporters as well as residents were sending a stream of updates and pictures live from the scene. Herewith, in chronological order, shorn of all speculation and unconfirmed reports, is a curated selection of tweets that helped piece the story together.\n\nScene on Mt. Auburn in #Watertown. Hearing shots fired. Officer possibly shot.twitpic.com/ckcapp\n\u2014 susantran (@susantran) April 19, 2013\n\n\nCrashed cop car with all windows shot out in our driveway #mit #boston #shooting twitter.com/AKitz/status/3\u2026\n\u2014 Andrew Kitzenberg (@AKitz) April 19, 2013\n\nA possible explosive device was found, and a bomb squad robot sent in:\n\npolice are saying that their cell phones could possible blow up the bomb in the street.police ordered to power down all cell phones.\n\u2014 Michael Skolnik (@MichaelSkolnik) April 19, 2013\n\n\nGreen accord license: 116GC7 involvedin shooting. Crashed cop car windows shot out. 62 laurel #mitshooting #boston twitter.com/AKitz/status/3\u2026\n\u2014 Andrew Kitzenberg (@AKitz) April 19, 2013\n\n\nBeing cleared back to School St. Cops not playing around. \"Get the fuck out of here. This is not safe!\" Hundreds of officers #MITShooting\n\u2014 Wesley Lowery (@WesleyLowery) April 19, 2013\n\n\nAt one point police officers screamed that they feared IEDs, no explosions where I am but officers here were horrified. #MITShooting\n\u2014 Wesley Lowery (@WesleyLowery) April 19, 2013\n\n\nAt least 30 police cars, maybe more, on residential street in Watertown. Police have guns drawn, trying to set up perimeter.\n\u2014 Seth Mnookin (@sethmnookin) April 19, 2013\n\n\n.@seankellytv reports someone being taken into custody right now.Handcuffed.Police telling residents to move away\n\u2014 WCVB-TV Boston (@WCVB) April 19, 2013\n\n\nThe resident we spoke to, @akitz, is directly above the shootout. Car crashed into his drive.\n\u2014 Ravi Somaiya (@ravisomaiya) April 19, 2013\n\n\nAll cops headed to new active scene told to power down cell phones.\n\u2014 Seth Mnookin (@sethmnookin) April 19, 2013\n\n\npolice moving to another location.getting ready for \"tactical response\" to response to movement in a house. #watertown\n\u2014 Michael Skolnik (@MichaelSkolnik) April 19, 2013\n\n\nFBI on the scene. twitter.com/taylordobbs/st\u2026\n\u2014 Taylor Dobbs (@taylordobbs) April 19, 2013\n\n\nA dozen officer going into our yard at 62 laurel st. #mitshooting #mit #boston twitter.com/AKitz/status/3\u2026\n\u2014 Andrew Kitzenberg (@AKitz) April 19, 2013\n\n\nLine of cops walking down Dexter Rd is now well over 100.\n\u2014 Seth Mnookin (@sethmnookin) April 19, 2013\n\n\nPolice stationed in Target and other parking lots. Still hundreds of officers on scene. Helicopters/cruisers everywhere\n\u2014 Wesley Lowery (@WesleyLowery) April 19, 2013\n\n\nMassive search still going on in Watertown. Much less tense than earlier but huge foot search seemingly underway\n\u2014 Wesley Lowery (@WesleyLowery) April 19, 2013\n\n\nStill very tense scene here. Police ordering journalists to put hands up. Ordered out of area where people gathered.\n\u2014 Sean Kelly (@SeanKellyTV) April 19, 2013\n\n\nBoston Police spokeswoman says they do not know if suspects tied to marathon bombing.\n\u2014 Sean Kelly (@SeanKellyTV) April 19, 2013\n\n\nScanner and on scene chatter makesclear that still lots of confusion. If this was daytime=total chaos, definite traffic casualties.\n\u2014 Seth Mnookin (@sethmnookin) April 19, 2013\n\n\nOfficer warning me to move back: \"There's a guy out here with a rifle. He engaged us...\"- @davidwade\n\u2014 WBZ Boston News (@cbsboston) April 19, 2013\n\n\nCape Cod SWAT Bear cat (armored truck) just arrived in Watertown.\n\u2014 Brian D'Amico (@brianjdamico) April 19, 2013\n\n\nFBI agents walked by averted their eyes from cameras; Boston pd looked bemused.\n\u2014 Seth Mnookin (@sethmnookin) April 19, 2013\n\n\nPolice are going to stage a command post. Policeman confirms explosives were involved.\n\u2014 Jess Bidgood (@jessbidgood) April 19, 2013\n\n\nLikely staging area will be Arsenal Mall. Two suspects accounted for. Explosive devices believe used. Multiple scenes, haven't cleared all.\n\u2014 Seth Mnookin (@sethmnookin) April 19, 2013\n\n\nState Police: \"We have two suspects accounted for in Watertown.\" Believe explosives were used on police.\n\u2014 Sean Kelly (@SeanKellyTV) April 19, 2013\n\n\nI know Boston.com is reporting suspect related to Marathon. Response at scene certainly indicates - but I haven't gotten word.\n\u2014 Seth Mnookin (@sethmnookin) April 19, 2013\n\n\nThe police have confirmed that they are looking for the guys from Monday's Boston Marathon Bombing.Guy with white hat still at large.\n\u2014 Michael Skolnik (@MichaelSkolnik) April 19, 2013\n\n\n\"White suspect with grey hoodie should be considered armed and extremely dangerous. Possibly with an assault rifle and explosives.\" -police\n\u2014 Michael Skolnik (@MichaelSkolnik) April 19, 2013\n\n\njust stating facts: man whose car was jacked in Cambridge described the two car-jackers to police as \"Middle Eastern.\"\n\u2014 Michael Skolnik (@MichaelSkolnik) April 19, 2013\n\n\nPolice on the scene have stressed from the very beginning that they fear suspect has access to phone-triggered IEDs\n\u2014 Wesley Lowery (@WesleyLowery) April 19, 2013\n\n\nBomb squad robot inspecting the back seat of the sedan #mitshooting #mit #boston twitter.com/AKitz/status/3\u2026\n\u2014 Andrew Kitzenberg (@AKitz) April 19, 2013\n\n\nPolice boats in Charles River. Heading toward Watertown. Police urging people to stay inside.\n\u2014 Jonathan Hall (@JHall7news) April 19, 2013\n\n\nLots of cops leaving the scene. twitter.com/taylordobbs/st\u2026\n\u2014 Taylor Dobbs (@taylordobbs) April 19, 2013\n\n\nSignificantly less helicopter traffic now. Not sure what, if anything that means. Media/locals hoarded into Target parking lot.\n\u2014 Wesley Lowery (@WesleyLowery) April 19, 2013\n\n\nRepeat\u2014media should NOT go to Arsenal. Media should stage at Brighton Barracks FOR NOW. That might change but you can wait there\n\u2014 MASS STATE POLICE (@MassStatePolice) April 19, 2013\n\n\nThey are investigating this as possibly related to the Marathon bombing but not confirming a link to it.\n\u2014 Brian D'Amico (@brianjdamico) April 19, 2013\n\n\n\"One more suspect at large. Two accounted for should be revised. One accounted for. One at large.\" -State Police\n\u2014 Michael Skolnik (@MichaelSkolnik) April 19, 2013\n\n\nStrong possibility connected to MIT shooting. Suspect apprehended transported to hospital. No comment on condition.\n\u2014 Seth Mnookin (@sethmnookin) April 19, 2013\n\n\nBREAKING: Steve Cooper: According to law enforcement source: The 2 suspects are the #BostonMarathon suspects the FBI are looking for. #7News\n\u2014 7News (@7News) April 19, 2013\n\n\nBomb squad just arrived on Arsenal St in Watertown.twitter.com/davidwade/stat\u2026 - @davidwade\n\u2014 WBZ Boston News (@cbsboston) April 19, 2013\n\n\npressure cooker found at scene in Watertown.not sure if it was explosive or just a pressure cooker.\n\u2014 Michael Skolnik (@MichaelSkolnik) April 19, 2013\n\nFinally, a public service announcement: please help charge the phones of these hardworking reporters so they can keep tweeting.\n\nSame for me with iPhone 5 RT @sethmnookin: Anyone at Brighton barracks w/iPhone 4 charger - I could use some juice.\n\u2014 Taylor Dobbs (@taylordobbs) April 19, 2013\n\nPhoto by Mario Tama/Getty Images\n      window._msla=window.loadScriptAsync||function(src,id){if(document.getElementById(id))return;var js=document.createElement('script');js.id=id;js.src=src;document.getElementsByTagName('script')[0].parentNode.insertBefore(js,fjs);};\n_msla(\"//platform.twitter.com/widgets.js\",\"twitter_jssdk\");"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2013/04/19/live-tweets-from-massive-police-standoff-in-watertown/>