@MajorLang you may want to give us your analysis of body language in due course....
The observations made below are my interpretation based on what was said:
In terms of language, I will start by noting the use of the word 'friend' by both women when speaking about Claudia. While SC used the term 'friend' once (and that was to say she and Claudia saw each other 4 times a week "which is probably more than most normal friends would see each other"), JK used "friend" 8 times. This might suggest that JK feels the need to stress her close connection to CL. It appears to be used as a description when (presumably) she was asked "tell me about your memories of CL" in the absence of providing actual reflections from their shared past. Perhaps over the years, JK has learned to reduce the amount of information provided lest it is 'wrongly' interpreted? This gives the impression of distancing herself from the subject. On the other hand, SC prefers to demonstrate her closeness with Claudia through a very personal anecdote. Perhaps she and CL had a more emotional bond?
SC spoke of the long term impact of her loss through having frequent dreams about her and Claudia together, like old times, and wanting to stay in those dreams because "that world was nice and comfortable and the world I'm in now isn't". There was no sense of embarrassment in talking in this way and she spoke of dreams giving her comfort. But she doesn't sugar coat either.
JK spoke of Claudia in relation to how CL had personally supported her: "great", "loyal", "she welcomed me into her home when I needed help", "kind" and how she (JK) was "petrified" when she went missing. "I couldn't believe something could happen to someone so good" - then, perhaps realising what she had said adds, by way of compensation, "I mean she's not a saint!"
SC is very open about her thoughts on the lack of information about CLs disappearance/murder: "Unbelievable", "can't comprehend", "really frustrated", "not one clue, not one piece of evidence, how is that even possible?" JK doesn't openly criticise or challenge the lack of progress. Given her experiences in 2015/16, she has already made it known she would prefer the police got the right person so instead talks about having hope that someone would come forward with evidence "to draw it to whatever resolution it comes to".... I just want to know where my friend is.... As long as I'm alive she will be alive because I will never stop thinking about her".
What stands out to me is how polarised the 2 women are in terms of their outlook. SC looking backwards and wanting it to be the way it used to be in her happy, comfortable world with CL. JK just wanting it to be resolved so she can move on with her life. I feel her last sentence is added in an attempt to bring warmth to a fairly objective interview.
Like I said, I don't know either of these women. They are obviously different people and there is a 20 yr age gap which will have a bearing on their outlook. SC was a single woman like CL who knew nobody and bonded with her because of their similar circumstances in Heworth. They were friends first, with JK becoming involved because of her job in the pub. She was at that time just 24 but her life is now at a different point and perhaps she feels her future is blighted until this case is resolved. SC has lost her companion and since she too can't move on (doesn't want to, in some respect), the loss of CL from her world has had a significantly greater impact on her life. I understand from reading an article in the Times, that SC has left Heworth and no longer has contact with any of her former 'friends'. I also thought it was interesting that the 2 women were interviewed separately.
Suzy Cooper and Jen King speaks about their friend Claudia Lawrence... Stock Footage Video - Getty Images