Dufault attended high school at the Noble and Greenough School in Dedham, Mass. The head of school, Robert Henderson Jr., said her successes touched almost every aspect of the school's program.
"Dufault was an extraordinary young woman, one of the most precocious students who her teachers ever encountered," Henderson said. "She was simply brilliant. Her mind, her sense of curiosity, her perceptiveness, her sensitivity, and her enjoyment of what she did were extraordinary. She was a true intellectual."
Last month, Raymond Clark III pled guilty to the murder and sexual assault of Yale University graduate student Annie Le in a research building on the New Haven campus. Clark, 26, strangled the 24-year-old Le just days before her wedding in September of 2009.