I believe he is telling a pack of lies but sprinkling bits of truth in there too to make it sound believable.
I also think that he knows exactly what has happened to Margaret and is bluffing his way through.
Would be interesting to know his answer to the question about the burning flesh, this article didn’t mention what he answered.
Murder accused 'incapable' of killing Margaret Fleming
The earlier article quotes his answer:-
"He was also asked about claims made by ex-fireman Paul Neeson during the trial that he once smelled burning human flesh from a bonfire at Mr Cairney's home.
Mr Cairney replied: "Was the guy not totally discredited...a nutcase."
Iain McSporran QC, for the prosecution, put it to Mr Cairney that he did not see Margaret Fleming in London in October 2017 as she was dead.
Mr Cairney replied: "No, you are wrong. Margaret Fleming is still alive and it is very, very vicious of you to suggest otherwise."
Mr McSporran continued: "You killed her and spent years telling lie after lie."
The witness answered: "Could you tell me the basis of that?"
The QC said: "You lied to cover up the most dreadful crime of murder."
Mr Cairney said: "Nonsense. Absolute nonsense."
The exchange followed a tense period of cross-examination during which Mr Cairney was told off by the judge for calling Mr McSporran a "clown".
He also told jurors that he had not been friends with Margaret's father, Derek Fleming.
He said: "Derek wasn't a friend of mine, he was a louse. I didn't take the louse, I took up the daughter."