On December 14, 1992, a mass shooting occurred at Bard College at Simon's Rock in Great Barrington, Massachusetts, United States.

[1] That night, an anonymous person phoned school officials, claiming that Lo was armed with weapons and was going to kill members of the Robinson family.

Lo travelled by taxi to Pittsfield, Massachusetts, and purchased a SKS semi-automatic rifle at Dave's Sporting Goods store.

Lo then fatally shot student Galen Gibson who had left the library to assist whoever had crashed their car, unaware that there was a gunman on campus.

Lo's rifle jammed and he dropped his weapon before he walked to the student union building and phoned police to tell them of his actions.

Those wounded were the security guard Theresa Beavers, 42, and students Thomas McElderry, 19, Joshua A. Faber, 17, and Matthew Lee David, 18.

He attended the Aspen Music Festival in 1990 and studied under the prominent violin teacher Dorothy DeLay.

[2] He wrote an essay arguing for segregation of homosexuals to prevent the spread of AIDS, and denied the existence of the Holocaust.

Although claims were made by the media prior to the trial regarding Lo's supposed racist beliefs, he was never charged with a hate crime, and the racism accusations were never substantiated.

The book spurred correspondence between Gibson and Lo, which was detailed in a New York Times article,[7] as well as a German TV documentary film.

Lo wore a sweatshirt with the name of the New York City hardcore punk band Sick of It All during the shooting.

The journalist Chuck Klosterman wrote a passage in his book, Killing Yourself to Live, in which Wayne Lo writes Klosterman a letter from prison contemplating what questions might have been raised if Lo were arrested wearing a T-shirt with the bands Poison or Warrant instead of Sick of It All.

[10][better source needed] Through an intermediary, Lo sold art he made in prison, donating proceeds to The Galen Gibson Fund.