Transcript for Is Columbia University Doing Enough to Stop Sexual Assault on Campus?
We turn to the nationwide outcry about sexual assault on college campuses. So many allegations that tonight a kind of secret avenger is on the move at one Ivy League institution Columbia University. Mysteriously a flier with the names of young men alleged to be assailants is appearing across campus along with graffiti on the walls. Is this a spur to action -- a witch hunt from our partner fusion now anchor at least -- Menendez has the story. In one of the nation's most prestigious universities it kind of storm is brewing I was raped by a and one of my days. Close friends here is also stated that -- -- assault bullets as one of 23 students at Columbia University. Many of whom say they had been -- victims of sexual assault on campus. Now publicly complaining that the university has not taken their cases seriously. -- is not appropriately punish the alleged perpetrators. What -- of justice for you seeking from the administration. I just wanted him to get off campus I mean I see him and on canvas and every time I feel extremely triggered and scared. The administration didn't do anything to even. Take him off campus temporarily then you week ago something extraordinary happened someone or group of people no one knows. Took matters into their own -- they sprayed graffiti on bathroom walls. And plaster the campus with fliers listing the names of students whom they identified as campus -- tests. It's caused an uproar with many saying this is vigilante justice -- its worst. -- those schools. That they have not been found guilty in a court of law. That it is irresponsible. And potentially even dangerous to post their names publicly I understand why people wouldn't believe the the list but. I know for a fact because I believe my friends. That. All that all those men are guilty of credits. Columbia University has scrubbed the graffiti off the walls and release a statement ABC news saying there increasing measures to prevent sexual assaults and misconduct. And support survivors. Campus sexual assault is a huge problem in the country. According to White House report one in five women have been assaulted while in college and two thirds of them are salted ice someone they know. Amma says she has nothing to do with the list is coming out of the shadows demanding universities stuck -- If I can stop quite -- from having to go through I want him. I'll feel. Sexual assault is a huge issue on campuses all over the country. The government is investigating 55 universities and colleges. For allegedly mishandling sexual assault and what about the young -- on those -- the ones named are they fighting what are they doing none of them have spoken publicly we did try to reach out to them -- work so far but we'll stay on. All right thank you so much good to have you with us and you can see a lot more police is reporting week nights at 9 PM on our partner. Fusion.
This transcript has been automatically generated and may not be 100% accurate.