article_snippet: I was in my dormitory writing a paper and a friend called me in desperation from a bus.
article_snippet: In January, I traveled to the Ayotzinapa college.
article_snippet: I have witnessed all kinds of human tragedies, but there can be few things as painful as the torment of not knowing where a loved one is.
article_snippet: I'm alarmed about what happened
article_snippet: and I every step of the way.