A student at Duke University hung a noose from a tree on the Durham, North Carolina, campus on April 1. This came about a week after the university began investigating reports that a group of white men had harassed a black female. The men were reportedly singing the same racist chant, which casually uses the N-word and jokes about lynching black men, that got the Sigma Alpha Epsilon fraternity expelled from the University of Oklahoma earlier this year. "I think the most important thing to make clear is that they're not isolated events that have popped up this year," Jamal Edwards, a junior at Duke and president of the school's Black Students Association, said.