Events to mark the 50th anniversary of Bloody Sunday are taking place in Derry this weekend.
The former leader of Britain's Labour Party, Jeremy Corbyn, will give a lecture there today - and Taoiseach Micheál Martin will attend an event tomorrow morning.
It's to commemorate 13 people being shot dead by British soldiers at a civil rights march on January 30th, 1972.
Tony Doherty's father, Patrick, was one of the victims - and says the tragedy has stayed with him all his life:
"In some senses, it does actually feel like yesterday. I was 9 when Bloody Sunday happened. And I've just recently turned 59. So, the event .of Bloody Sunday has been with me for the greater part of my life. It's not necessarily a thing that I seek to own as such but I do recognise that it's there and it is a part of my life."
