Harrington stopped and pleaded with the man to back away from the edge — "and eventually he did," he remembers. "We sat on the sidewalk... [and talked] about what was happening to him, why was he feeling that way... I couldn't leave him there alone, but I had to go, so I was going to ring an ambulance."
"I talked to him for 45 minutes and he told me so many people had walked past him before I stopped and he eventually let me call him an ambulance and we swapped numbers and that was that," Harrington tells Irish Mirror.
But that was only the beginning...
Three months later, according to Harrington, he received a text message from the stranger on the bridge.
"He texted me that his wife is pregnant, they're having a boy, and they're naming him after me. Can you believe that? They're going to name their child after me."
The stranger proceeded to tell Harrington that he was seconds away from jumping off the bridge before the teen asked him "Are you okay?"
"I can't really understand how these few words could save his life, but he told me, 'Imagine if nobody ever asked you those words...'" Harrington adds in the Instagram post.
But according to The Irish Mirror, Harrington doesn't think he's a hero. He just thinks he was being kind — "and that costs nothing at all."
According to 2014 reports in The Irish Times, "Ireland has exceptionally high rates of suicide among young males and females but lacks a national strategy and prevention."
The National Suicide Research Foundation (NSRF) in Ireland is currently working on about 22 projects, including the Suicide Support and Information System and the National Registry of Deliberate Self-Harm, the former of which aims to better understand suicide, improve support, and "better define the incidence and pattern of suicide in Ireland."
Moreover, Jamie's story comes at an extremely important time: World Suicide Prevention Day is September 10th. The theme? "Preventing Suicide: Reaching Out and Saving Lives." It's an excellent way to connect with those in need throughout the world.
You can read inspirational stories from suicide attempt survivors here. And if you or someone you know needs help, you can reach the National Suicide Prevention Lifeline at 1-800-273-8255.
Read Jamie's full story below: