The mother of murdered doctoral student Annie Le is suing Yale, claiming the school tolerated a culture of violence that led to her daughter's death, reports NBC's Today show. In an interview with Today's Anne Curry, Le's mother Vivian Le says Yale didn't do enough to protect her daughter from Raymond Clark, the lab technician who killed Le a week before her wedding and hid her body behind a wall. Clark pled guilty and was recently sentenced to 44 years in prison. The lawsuit claims that Yale tolerates a culture of violence toward women, and should have done more to protect Le. The Le family's lawyer, Joe Tacopina, tells Today that the university has had a well-documented rash of assaults against women that the school has done nothing substantive about, and that other students and lab employees made specific complaints about Clark that went unanswered. Tacopina says the fact that Clark's supervisor was his brother-in-law may have helped Clark slip through the cracks. Yale is currently under investigation by the US Department of Education's Office for Civil Rights for violations under the Title IX code, after 16 current and former students filed suit claiming the university didn't do anything to deal with their accusations of harassment and assault, NBC says. In response to the lawsuit, Yale says it had no warning that Clark was dangerous and that there were no "reasonable security measures" that could have prevented the tragedy. Speaking to Today, Vivian Le says her daughter would have "become a very good scientist" who could have helped the world through her research.