The following item contains topics of school shootings and suicide. It isn't suitable for little ears and listener discretion is advised.

In 2004, John Romano walked into his New York high school with a shotgun, and started firing. He was 16 years old at the time, and thankfully nobody was killed.

After serving his prison sentence, he now has a quarter of a million followers on TikTok advocating for mental health, and preventing further gun violence.

He joins Seán to discuss…