Sue Klebold is an author, public speaker, and advocate for mental health awareness. She is best known as the mother of Dylan Klebold, one of the two shooters at Columbine High School in 1999. Since that tragedy, she has devoted her life to understanding and preventing suicide and other forms of violence. She is the author of A Mother's Reckoning: Living in the Aftermath of Tragedy, which chronicles her journey of grief, guilt, and hope.