Candy Montgomery is the central figure in the story. But without more context, it's hard to say exactly who she is. She could be an ordinary person with an extraordinary story, or someone involved in a well - known event.
We don't have enough information to know exactly who Karen is. She could be an ordinary person, a student, a teacher, or just someone who likes to read stories.
Candy Montgomery was a woman who became known for her actions and the events in her life that were quite sensational. She was a housewife in a certain town.
Given only 'dateline karen read story', Karen's identity remains a mystery. She might be a staff member at Dateline who was reading a story for work purposes. Or she could be a person who was interviewed by Dateline and was reading a story during the interview, or she could be an ordinary person whose story - reading experience is being highlighted in relation to Dateline.
The truth of the Candy Montgomery story is a bit complex. It likely contains elements of truth mixed with some embellishments or interpretations to make it more compelling for storytelling.