Tributes have been pouring in for a charity worker and former principal at a school in Churchtown who was killed in South Africa.

John Curran (60) was fatally stabbed in Cape Town last Wednesday during a robbery in his apartment.

CCTV image from SA Police

South African Police have released CCTV images to identify a man they want to question in relation to the murder.

John was due to come home to Ireland within the next two weeks after completing a two-year contract as Director of Education for Mellon Educate and was staying on vacation in Cape Town for a number of weeks.

He was a volunteer for the education charity, working tirelessly to renovate schools and improve the standard of education for those less fortunate in townships in South Africa.

The father of four was the principal of The Good Shepherd National School in Churchtown for 16 years from 1989 -2005.

In a statement, the school said: “An innovative educator, John’s vision and enthusiasm still influence our ethos and can be seen at work throughout our school today. We are proud to continue the work he began here in 1989.

“We know that many of you share our fond memories of John. He will be sadly missed by parents, staff, past pupils and all those in the wider Good Shepherd school community.”

Local Minister Josepha Madigan also expressed her sadness at the news.

“John was well known in education circles in Dublin Rathdown and served the children of Churchtown well during his many years teaching at Good Shepard NS.

“At a national level he was involved in numerous projects with Irish Principals Primary Network over the years.

“His legacy in the area of education is a significant one. He will be sadly missed.”

CEO of Mellon Educate Niall Mellon said: “John was much loved by everyone who met him and especially by the thousands of children he helped during his time with Mellon Educate.”

Many have been paying tribute to Mr Curran on social media.

Caroline McKeown said: “Terribly sad news about John. Always a warm greeting and great enthusiasm for education.”

Gerry Molumby said: “@mrsjmmccarthy and my wife Fiona worked closely with this great man this summer in South Africa and before. He left the world a better place and his physical and spiritual legacy that you can point to and walk on today and tomorrow and forever.”