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Boston University students gather to sign a condolence note prior to a candlelight vigil on Marsh Plaza at Boston University, Saturday, May 12, 2012, in Boston, for three students studying in New Zealand who were killed when their minivan crashed during a weekend trip. At least five other students were injured in the accident, including one who was in critical condition. Boston University spokesman Colin Riley said those killed in the accident were Daniela Lekhno, 20, of Manalapan, N.J.; Austin Brashears, 21, of Huntington Beach, Calif.; and Roch Jauberty, 21, whose parents live in Paris. (AP Photo/Bizuayehu Tesfaye)

Boston University students gather to sign a condolence note prior to a candlelight vigil on Marsh Plaza at Boston University, Saturday, May 12, 2012, in Boston, for three students studying in New Zealand who were killed when their minivan crashed during a weekend trip. At least five other students were injured in the accident, including one who was in critical condition. Boston University spokesman Colin Riley said those killed in the accident were Daniela Lekhno, 20, of Manalapan, N.J.; Austin Brashears, 21, of Huntington Beach, Calif.; and Roch Jauberty, 21, whose parents live in Paris. (AP Photo/Bizuayehu Tesfaye)

NZ police charge driver in Boston U crash

New Zealand police filed charges, Friday May 18, against a 20-year-old American who drove a minivan in a crash that killed three fellow Boston University students.