Student killed at marathon remembered as bright

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This undated photo provided by Meixu Lu shows Lingzi Lu in Boston. Boston University confirmed Wednesday, April 17, 2013, that Lingzi Lu, who was studying mathematics and statistics at the school and was due to receive her graduate degree in 2015, was among the people killed in the explosions at the finish line of the Boston Marathon Monday, April 15, 2013, in Boston. (AP Photo/Meixu Lu)

BOSTON (AP) — Earlier this week, Lu Lingzi sent an exuberant email to a professor after learning she had passed part of a major exam. She had spent the entire year preparing for the test.

Less than 24 hours later, she was killed in the Boston Marathon explosions that claimed two other lives.

Lu was a graduate student at Boston University studying statistics. She also attended the Beijing Institute of Technology.

Lu is being described as an exceptional student and bright young scientist.

Tasso Kaper, the chair of BU's mathematics department, says Lu loved flowers and the springtime.

She only had one course left to complete in order to graduate.

She was standing with two friends when the bombs went off. One was seriously injured.