She says that after filming finished on Gregory's Girl all those years ago she felt "bereft".

BBC: Scotland

"The mother was home at the time of the incident but she had stepped outside, " Gregory said.

CNN: 5-year-old Kentucky boy fatally shoots 2-year-old sister

After his death she says she threw everything into looking after their children - Deirdre, now 33, Gregory, 30, and Kristin, 28.

BBC: 'The children had terrible nightmares'