Henry Nowak's killer is seen lying to police in bodycam video released after a request from the BBC.
13 men are accused of helping a man abuse his wife over a period of years.
New figures show the monarch paid £12.9m in tax last year, but do not give any detailed breakdown of how that tax was calculated.
King Charles and Queen Camilla will continue to reside in Clarence House, Buckingham Palace says.
Police say the pilot believed to be a woman in her 40s was pronounced deceased at the scene.