On Thursday, officers arrested the man at a London hospital on suspicion of the murder of Sharon Pickles and Clinton Ashmore.
It comes after police conducted a search of a Westminster
property on 19 August which resulted in the discovery of 45-year-old Sharon,
who was pronounced dead at the scene.
The following day, officers attended a second address following
reports of a man being stabbed.
They found 59-year-old Clinton, who was also pronounced dead
at the scene.