The death of a man who was trying to stop thieves breaking into his van is to be reconstructed on the BBC.
Mr Matharu tried to stop men stealing his van
Balbir Matharu, described by police as a decent, hardworking man, stood in front of a car as the thieves tried to make their escape on 12 January.
He had spotted them trying to break into his van, parked in Stratford, east London, but was run down and killed as he tried to stop them.
It will be re-enacted on Crimewatch on Wednesday to try to find witnesses.
Police believe the killers were serial thieves who had broken into other cars in the area.
They also think they are local as Francis Street, where Mr Matharu had left his van in a car park, is not a common shortcut.
An old-style dark green Mondeo, possibly M registration, was used as the getaway car.
Mr Matharu, 54, from Forest Gate, east London, was found lying in the street by his wife and daughter, who were working nearby at the family business.
The Crimewatch programme will also re-iterate the £20,000 reward offered for help identifying and prosecuting the killers.