'What cost do we put on a life?' asks son of woman who died after ambulance delay

The son of a woman who died after waiting for almost an hour for an ambulance has warned others that the same could happen to them if they don't act.

Brendan Porter's mother Maura, aged 70, died after she was struck by a car on her way home from Mass in Carndonagh, Co Donegal in December 2013.