The families of the victims of the Omagh bombing are this week marking 25 years since they lost their loved ones.
29 people were killed in the bombing, on August 15th 1998.
21-year-old Aidan Gallagher left home to go shopping, and never returned.
His father Michael says he's haunted by events that day:
"I'll never forget, as he walked down the hall, he turned and looked back at me and he says 'I won't be long'. That was the last time we saw Aidan. I went back to the garage and about an hour after I could hear a loud explosion. Then it was 'where's Aidan?'.
