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The Boston Globe

Metro

Brothers first planned July 4 attack, officials say

Dzhokhar Tsarnaev, the surviving suspect in the Boston Marathon bombings, told federal investigators that he and his brother initially planned to detonate explosives at Boston’s vaunted July Fourth celebration on the Charles River Esplanade, according to two officials briefed on the interrogation.

When the brothers built the bombs faster than they had anticipated, they drove around Boston and Cambridge sometime before Patriots Day casing police stations, with an alternative plan to launch an attack on law enforcement officers, one of the officials said.

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