A mother grapples to understand how her son became a school shooter and what it would take to prevent the next shooting.

April 20, 1999 Columbine High School came under attack by two of its own students: Eric Harris and Dylan Klebold. In a new documentary, Sue Klebold (Dylan’s mother) attempts to understand how her son became one of the most notorious school shooters in history.

After Columbine, Sue was hated across America. She was caricatured as an unloving, aloof, and absent parent. Yet Sue describes a happy family full of fun, laughter, and love. “If love could have stopped Columbine,” she says, “Columbine would never have happened.”

To understand what took place, Sue has scoured her past, reconciling the son she knew with the monster she didn’t. She has met with leading experts and gained insight among other suicide loss survivors. She has come to better understand what took place at Columbine. It was not a rare sensational event but a particularly gruesome appendage to a much larger and more prevalent problem.

Sue’s is an invaluable story that forces us to reconceptualize what prevention should look like, to rethink what it will take to stop the next American tragedy.