Police investigating the death of a man shot dead in his car in Streatham have put up a reward of £7,500 for information which leads to an arrest, or substantially helps inquiries.

Andre Jan Aylward was killed after a gun was fired into his black BMW car in Valleyfield Road early on Saturday morning, May 12, as he was driving home.

His car then collided with a number of parked cars, and he was taken to Kings College Hospital where he died from gunshot wounds to his head.

Mr Aylward, 27, was the manager of Olivers Pet Supplies in Streatham Vale, and police believe he may have been killed in a case of mistaken identity.

His father, Alan Aylward, a research physicist at University College London, said: Jan was a quiet and shy boy and spent his evenings and spare time on his hobby which was working on his car and especially the in-car sound system.

I have spoken to several of his customers at the pet shop and everyone is very shocked that something like this has happened.

They said how gentlemanly he was and helpful to them. We are shocked and devasted that this has happened and if any of the public can help us to understand why this has happened please contact the police.

Police are appealing to anyone who may have been in the vicinity of Valleyfield Road at the time of the shooting.

They are particularly keen to hear from anyone who may have been around the BP petrol station at the top of Knights Hill at about 2.20am on Saturday, May 12, and who may have seen a grey coloured 7 series BMW being filled with petrol.

They also want to speak to witnesses who saw any incident between the driver of that car and Mr Aylwards black BMW along Crown Lane and Streatham Common North to the junction with Leigham Court Road.

DCI Ken Pandolfi heading the investigation said: Andres callous murder has left his family completely devastated and baffled as to why anyone would want to kill him.

Someone, somewhere, must know something and I would urge anyone with information to come forward and speak to the police in the strictest confidence.

I guarantee that everyone who approaches us will be treated with the utmost care and sensitivity.

Any information to 020 8247 8261, or Crimestoppers anonymously, on 0800 555 111.