Mum, dad and son killed in suspected 'triple stabbing' tragedy namedMark and Louise O'Connor, in their 50s, and their son Evan, who was in his 20s and had special needs, sustained fatal injuries in the suspected stabbing incident. View 4 Images Mark and Louise O’Connor and their son Evan were tragically killedA mother, father and son who were killed in a "violent incident" have been named and pictured for the first time. ‌Mark and Louise O'Connor, in their 50s, and their son Evan, who was in his 20s and had special needs, sustained fatal injuries in the suspected stabbing incident that happened in their country stone cottage in Ireland. ‌A male in his 30s, who is understood to be known to the family, is suspected of killing them by fatally stabbing them and he has since been arrested. "It was a complete shock this morning, people were not expecting this tragedy at all," she told the Irish Mirror.