Police reveal the home, where a mother and her five children were killed in a fire, was burgled on the night they died.
Sabah Usmani and her children were all killed after flames swept through their home in Harlow in Essex last month.
The children's father survived.
Police have said his laptop bag was discovered abandoned, two weeks after the fire.
Ria Chatterjee reports on the latest developments in the investigation.
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The eagle-eyed resident spotted the mistake on signs just feet apart in south London.
The victim was attacked after bumping into a man at the ticket barrier at Putney Station.
The victim, who is his 40s, was found near the edge of palace grounds.