[url=http://gma.yahoo.com/boston-bombs-likely-built-fireworks-132131170--abc-news-topstories.html]Turns out they used Firework gun powder[/url]. They bought 400 dollars worth of fireworks in January.
[quote]He just wanted the biggest, loudest stuff we had in the store[/quote]
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And now the conspiracy theories about this are moot.