Dr. Caroline Muirhead met Alexander McKellar on Tinder in 2020, and at first, it felt like the kind of ordinary modern romance that rarely does much more than fill a few evenings.
He was attentive, serious‑sounding, and quick to talk about the future. Within weeks, he was talking about marriage. For Muirhead, who had just left a hurtful relationship, it felt like escape. It felt like the beginning of something stable.
It did not feel like the opening scene of a case that would one day shape a Netflix documentary titled Should I Marry A Murderer?
