Police are trying to trace a witness following serious sexual assault in Weston-super-Mare.An Avon and Somerset police spokesman said: "We're continuing our efforts to trace a potentially significant witness who may have information relating to a serious sexual assault inquiry."A woman in her forties was attacked by a man in Albert Avenue between 2am and 4.30am on September 23."We're trying to identify a man who came to the woman's aid after she was attacked and helped her...
