Lauren Martell claims to have witnessed an alleged incident involving Rolf Harris in the bathroom of a London music studio in the early 1990s.
The woman contacted the Metropolitan Police in November when she first heard of the investigation into Jimmy Savile.
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Joseph Thoresen beheaded a man his girlfriend said had sexually assaulted her with a machete and threw his head into the woods, reports say.
The dad of Luke Jenkins, who died at Bristol Royal Hospital's children's cardiac unit labelled an NHS England review a 'tick-box exercise'.
Conservative heavyweights Boris Johnson and Theresa May are to launch their leadership bids on Thursday.