Dr. Caroline Muirhead recalls how her former fiancé Alexander McKellar made her “feel whole, and loved and special.” Then in 2020, McKellar dropped the most troubling of secrets: He was responsible for a hit-and-run killing and hid it from police. Muirhead’s dilemma to protect her lover’s secret or sacrifice their relationship forms the central conflict of Should I Marry a Murderer? , the new documentary series premiering Wednesday, April 29, on Netflix. The three-part project features a new interview with Muirhead, who—spoiler alert—didn’t marry McKellar and even helped gather evidence of his crime for police. However, Muirhead, now around 35 years old, is still wrestling with the aftermath of her involvement after McKellar’s arrest and conviction. Here’s everything we know about her life today. Little is documented about Muirhead’s childhood and educational background. She worked as a forensic pathologist in Glasgow, Scotland, in October 2020 when the pertinent events of Should I Marry a Murderer? began.…