A new documentary titled ‘Should I Marry a Murderer?’ premiered on Netflix on April 29, 2026. It tells the harrowing true story of Caroline Muirhead, a forensic pathologist who met Sandy McKellar on Tinder. Their relationship took a dark turn when he confessed to a hit-and-run that killed cyclist Tony Parsons.
Caroline Muirhead, 29 at the time, helped police gather crucial evidence against Sandy. She marked the burial site of Tony Parsons with a Red Bull can, leading authorities to his remains. This shocking act of betrayal raises an unsettling question: should one marry a murderer?
Key events in the investigation:
- Sandy McKellar confessed to the hit-and-run in 2020.
- Caroline contacted police about his confession.
- Authorities exhumed Tony Parsons’s body in 2021.
- Sandy and his twin brother Robert were arrested for the murder.
- Sandy was tried and convicted in 2023 for culpable homicide.
Throughout her ordeal, Caroline recorded conversations with Sandy as evidence. She admitted experiencing significant emotional distress and substance abuse during their relationship. Yet, she chose not to marry him, instead assisting law enforcement in building their case.
Caroline reflected on her tumultuous experience, stating, “He said it’s my life or theirs … it was an admission.” Despite the trauma, she has since moved to the coast and is in a new relationship after extensive therapy.
Quotes from Caroline Muirhead:
- “What’s the worst that could happen?”
- “I had handed him in and ruined his life; he should hate me, but he made me feel loved.”
- “For the first time in several years, I now have hope for the future.”
The documentary delves into the complexities of love intertwined with crime. It sheds light on how personal relationships can become entangled in serious criminal investigations. Viewers are left questioning not only Caroline’s choices but also their own beliefs about love and morality.
