An SDLP councillor whose 18-year-old son died by suicide is urging the public to act quickly if they think someone may be at risk.

Denise Johnston, a Mid Ulster District Council representative, said her son Oisín Johnston died on September 25, 2025, in Ballymaguigan near Magherafelt. He had turned 18 earlier that month.

Denise Johnston said her son had no known mental illness. She described his death as a fatal mental health attack, comparing the loss of control to a fatal heart attack.

The councillor advised that anyone who hears a person indicate they might end their life should call 999 immediately. She acknowledged the call might be a false alarm but said it could also save a life.

Figures cited by PIPS Suicide Prevention Charity state 290 deaths were registered as suicide in Northern Ireland in 2025. The charity's chief executive, Renee Quinn, has said more people die by suicide than in road traffic accidents.

Denise Johnston said her son was in good spirits the weekend before he died, having attended a bingo loco event. She said she was unaware his relationship had ended and wishes she had prepared him better for heartbreak.

The councillor held an event in memory of Oisín at the Elk car park in Toomebridge. The Cars and Coffee 2026 gathering raised money and brought people together, particularly young men. Denise Johnston said her son enjoyed cars and would have appreciated the large number of vehicles present.

She said she will continue to share her son's story and use her political position to work towards more effective suicide prevention strategies.

Anyone in distress can contact Lifeline on 0808 808 8000 or Samaritans on 116 123.