It’s one of the most shocking moments in TV history that virtually no one has ever seen.

In the midst of an afternoon broadcast on July 15, 1974, reporter Christine Chubbuck informed viewers that “in keeping with Channel 40’s policy of bringing you the latest in ‘blood and guts’ … you are going to see another first: attempted suicide.” The Sarasota, Florida, newswoman pulled a gun from under the WXLT anchor desk and shot herself in the head, dying hours later at age 29.