A pensioner killed by a stranger at her home in Hornchurch has been named locally as Rosemary Shearman. She was aged 72. Mrs Sherman's son, Greg, is believed to on his way to scene from his home in Wales. Her daughter lives in Hong Kong.
More top news
George Michael died in December last year at the age of 53.
PC Keith Palmer, 48, stabbed by Khalid Masood while on duty in the grounds of the Palace of Westminster last Wednesday.
Those gathered on the bridge fell silent at 2.40pm - the time the first call was made to police exactly seven days ago.