During her time on the show, Rachel revealed her intention to use her prize money to create memories with her mother, who was living with Parkinson's and dementia.
She shared the news on Tuesday, 27 January, writing in an Instagram post: “We are heartbroken to share the passing of our beautiful wee mummy. We kindly ask for privacy as our family grieves during this difficult time.”
Rachel, a head of communications from Newry, Northern Ireland, won £47,875, splitting the £95,750 prize with fellow Traitor Stephen Libby.
Her candidness about her mother's illnesses resonated with viewers, raising awareness for Parkinson's and dementia.