Neighbours report that the attacker was seen on CCTV camera walking casually into the pensioner's home. The body was found by a concerned friend.
More top news
Made In Chelsea star Mark-Francis Vandelli has become the fourth celebrity to withdraw from the winter sports programme.
Just off Fleet Street stands a famous tiered tower. Designed by Sir Christopher Wren, it became the inspiration for the wedding cake.
The president of the respected Royal Institute of British Architects became the latest high profile figure to enter the row.