Boston

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Boston Mayor Martin Walsh (AP Photo/Steven Senne)

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Boston Mayor Martin Walsh (AP Photo/Steven Senne)

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Former Massachusetts Gov. Mitt Romney pauses as he addresses supporters during his Election Night rally in this Wednesday, Nov. 7, 2012, file photo, in Boston. (AP Photo/Elise Amendola) ** FILE **

President Obama frowns while speaking at a campaign rally for Mass. Attorney General Martha Coakley, the Democratic candidate vying for the seat vacated by the death of U.S. Sen. Edward Kennedy, D-Mass., Sunday, Jan. 17, 2010, in Boston. (AP Photo/Michael Dwyer) **FILE**

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Boston Red Sox pitcher Keith Foulke, center, and first baseman Doug Mientkiewicz, left, celebrate after St. Louis Cardinals' Edgar Renteria (3) grounded out to end the ninth inning and give Boston a 3-0 win and a sweep of the World Series, Wednesday Oct. 27, 2004, in St. Louis. (AP Photo/Mark Humphrey)

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FILE - In this Oct. 22, 1975, file photo, Boston Red Sox's Carlton Fisk, left, watches his 12th-inning home run against the Cincinnati Reds to win the sixth game of the World Series at Fenway Park in Boston. (AP Photo/Harry Cabluck, File)

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Federal Reserve Chairman Janet Yellen, left, reacts as a technician works to resolve a computer problem during her speech at a conference on economic opportunity at the Federal Reserve Bank in Boston, Friday, Oct. 17, 2014. (AP Photo/Michael Dwyer)

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FILE - In this Nov. 7, 2012, file photo, Republican presidential candidate and former Massachusetts Gov. Mitt Romney, left, speaks to his running mate, vice presidential candidate, Rep. Paul Ryan, right, R-Wis., as Romney's wife Ann waves to supporters after Romney conceded the race during his election night rally in Boston. Romney and his wife Ann announce an initiative to accelerate treatment and cures for complex neurological diseases, in partnership with Boston’s Brigham and Women’s Hospital. (AP Photo/Stephan Savoia, File)

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Washington Capitals left wing Alex Ovechkin, of Russia, celebrates his second goal of the first period during an NHL hockey game against the Boston Bruins in Boston, Saturday, Oct. 11, 2014. (AP Photo/Michael Dwyer)

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New York Yankees designated hitter Derek Jeter prepares to face Boston Red Sox starting pitcher Joe Kelly in the first inning of a baseball game at Fenway Park in Boston, Saturday, Sept. 27, 2014. (AP Photo/Charles Krupa)

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FILE - In this May 15, 2014 file photo, Robel Phillipos, a college friend of Boston Marathon bombing suspect Dzhokhar Tsarnaev, arrives at federal court before a hearing in Boston. Lawyers for Phillipos, a U.S. citizen who is charged with lying to investigators after last year's fatal bombing, filed a change of venue motion Monday, Sept. 22, 2014. The motion seeks to have his federal trial, scheduled to start the following week, moved from Boston to Springfield; Providence, R.I., or Portland, Maine. (AP Photo/Steven Senne, File)

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Detroit Pistons' Greg Monroe, left, looks to shoot past Boston Celtics' Jared Sullinger, right, in the first quarter of an NBA basketball game in Boston, Sunday, March 9, 2014. (AP Photo/Michael Dwyer)

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Police carry black demonstrator to patrol wagon on Sunday, August 10, 1975 in Boston at Carson Beach in predominantly White South Boston after black and white bathers pelted each other with rocks and bottles. About 600 riot helmeted police created a 200-foot-wide no-man’s land between the crowds of about 500 blacks and 1,000 whites. (AP Photo)

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Police officers break up a scuffle amid demonstrators outside South Boston High School on the first day of a court-ordered busing program to integrate Boston public schools, Sept. 12, 1974. South Boston High is predominantly white. (AP Photo/Peter Bregg)

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Police carry black demonstrator to patrol wagon on Sunday, August 10, 1975 in Boston at Carson Beach in predominantly White South Boston after black and white bathers pelted each other with rocks and bottles. About 600 riot helmeted police created a 200-foot-wide no-man’s land between the crowds of about 500 blacks and 1,000 whites. (AP Photo)

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Police officers break up a scuffle amid demonstrators outside South Boston High School on the first day of a court-ordered busing program to integrate Boston public schools, Sept. 12, 1974. South Boston High is predominantly white. (AP Photo/Peter Bregg)

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** FILE ** In this Friday, May 27, 2011, file photo, journalist James Foley responds to questions during an interview with The Associated Press, in Boston. A video by Islamic State militants that purports to show the killing of Foley by the militant group was released Tuesday, Aug. 19, 2014. Foley, from Rochester, N.H., went missing in 2012 in northern Syria while on assignment for Agence France-Press and the Boston-based media company GlobalPost. (AP Photo/Steven Senne, File)

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Boston Red Sox starter Curt Schilling delivers a throw during the eighth inning against the New York Yankees at Fenway Park in Boston, Monday, May 22, 2006. (AP Photo/Charles Krupa) ** FILE **