Caoimhin Porter-McLoone, 18, from Shantallow in Derry, died in a car collision on the R236 in St Johnston, County Donegal, on the night of February 24. He was a passenger alongside Daniel Cullen, also 18 from Derry. The car's driver, aged 18, sustained serious injuries, received initial treatment at Altnagelvin Hospital, and was transferred to the Royal Victoria Hospital in Belfast. The group had visited Asda in Strabane before heading back via Lifford and St Johnston.

Porter-McLoone's funeral mass took place on Saturday morning at St Brigid's Church in Carnhill. The procession started from the family home and passed through Shantallow, where pupils from his former school formed a guard of honour. Mourners included his mother Stephanie, sister Chloe, brothers Hunter, Shea, Darren and Ben, and grandparents Eamon and Isobel.

A framed photograph, Manchester United jersey, scarf and hat were placed on the altar. Fr Michael McGavigan conducted the mass and referred to Porter-McLoone as a former St Brigid's College pupil who played football for Don Bosco's youth team until an injury. The priest mentioned his upcoming job at Vertiv after interviews, interest in architecture with planned visits to sites in Edinburgh and Rome, and family discussions on philosophy and other topics.

Porter-McLoone was buried in Derry city cemetery beside his father Darren, who died more than a year earlier. The R236 serves cross-border travel between Northern Ireland and Donegal.

Donna Marie Reynolds launched an online petition for new signage and a speed ramp on the R236 into St Johnston. She cited repeated collisions on the stretch, including the bend before Harkins Petrol Station and the February 24 incident.