An undocumented immigrant who was brought to the United States by her parents when she was 4, Olivas traveled to Ciudad Juarez, Mexico, last month to beat a deadline to apply for a visa.

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But when Lana Kuykendall failed to feel better by Thursday, she checked out of the Atlanta hospital and traveled back to Greenville.

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Stephanie Riedel, who traveled to the pot celebration from Pittsburgh, said she was dancing with a hula hoop when she heard pops.

NPR: Gunfire Erupts At Colo. Pot Event, 2 Wounded