Netflix’s gripping true crime documentary, “Should I Marry a Murderer?”, dives deep into a chilling narrative that will make you rethink your dating choices. It unravels the haunting tale of a woman who learned that her fiancé had a dark secret—he was involved in the tragic death of a cyclist named Tony Parsons.
Tony Parsons, a 63-year-old retired Navy officer from the quaint Scottish village of Tyndrum, was a man who cherished life and the great outdoors. After overcoming prostate cancer, he embraced life with renewed vigor, dedicating his time to charity work and outdoor activities like cycling and hiking. His passion for helping others led him to commit to a 104-mile charity bike ride across the scenic Scottish Highlands—a testament to his generous spirit.
On September 29, 2017, Tony set off from Fort William, but his journey began later than planned. With daylight fading fast, he pressed on, determined to complete his ride. Around 6 p.m., a security camera captured him cycling past a local gas station. Hours later, he stopped at the Bridge of Orchy Hotel for a quick coffee, marking the last confirmed sighting of him alive.
That same night, tragedy struck when Alexander “Sandy” McKellar and his twin brother Robert were driving home after a night out. Their truck collided with Tony on a dimly lit road. Instead of seeking help, the brothers reportedly made a 𝓈𝒽𝓸𝒸𝓀𝒾𝓃𝑔 decision: they returned to the scene, found Tony still alive but severely injured, and loaded him into their vehicle. Rather than calling for assistance, they drove him into the woods, where they concealed his body in a remote peat bog.
Days passed without any sign of Tony, prompting his family to report him missing on October 2, 2017. A massive search operation ensued, with Police Scotland combing the Highlands for any trace of him. Despite their efforts, the search yielded no results, leaving Tony’s family heartbroken and desperate for answers.
Tony was not just a name in a missing person’s report; he was a loving husband, father, and grandfather who cherished moments spent with his grandchildren. His family described him as a vibrant individual who thrived on sports and community involvement, making his disappearance all the more tragic.
Three years later, the case took a dramatic turn when Carolyn Muirhead met Sandy McKellar on Tinder. Their whirlwind romance quickly escalated to engagement, but during a late-night conversation, Sandy confessed to Carolyn about the events surrounding Tony’s death. He allegedly even asked for her help in moving Tony’s remains due to construction plans in the area.
In December 2020, Carolyn reported Sandy’s confession to the police, leading to the arrest of both brothers. However, without physical evidence, they were released. Carolyn, determined to help find justice for Tony, began secretly recording conversations with Sandy and Robert, gathering crucial information about the crime.
Eventually, Carolyn persuaded Sandy to reveal the burial site, leaving behind a crushed Red Bull can to mark the location. In January 2021, police uncovered Tony’s remains, leading to the brothers’ re-arrest and subsequent charges. The investigation revealed that Tony had suffered horrific injuries and could have survived had the brothers sought help immediately after the accident.
Before the trial commenced in July 2023, Sandy and Robert entered plea deals, with Sandy admitting culpability in Tony’s death and receiving a 12-year sentence, while Robert was sentenced to just over five years. After nearly six years of uncertainty, Tony’s family finally learned the truth about his tragic fate.
In addition to the Netflix documentary, the case is also explored in the BBC series “Murder Case: The Vanishing Cyclist,” which delves deeper into the investigation and the family’s heart-wrenching search for answers. In 2025, Tony’s family reached a significant settlement with the insurance company related to the truck involved in the incident, providing them with some closure, though nothing can replace the loss they endured.
As discussions about this haunting case continue, many are left wondering: how can one person’s life be so dramatically altered by the choices of others?
https://www.youtube.com/embed/i3IL-UXmDx4
