Karoly Varga murder: Police appeal for weapon and trainers
A new appeal for information has been launched on the third anniversary of a pensioner being found murdered in his Northamptonshire home.
Karoly Varga, 76, known as Charlie, was found dead on 30 July 2011 at his home in Cannon Street, Wellingborough.
Hungarian-born Mr Varga was "viciously" attacked with a hatchet-like weapon after he let in an unknown visitor.
Police said finding the murder weapon or killer's trainers could give them a "breakthrough".
Police believe Mr Varga was killed three days before his body was found.
Det Ch Insp Martin Kinchin, from Northamptonshire Police, said: "I still believe it can still be solved.
"Key to solving the case would be the discovery of the murder weapon and the killer's training shoes."
The weapon and Mr Varga's back door key were taken from his house.
It is thought the killer could have hidden the weapon nearby.
Police also believe they would have wanted to get rid of their clothes, which included a pair of black and grey Lonsdale trainers.
"The murderer would probably not want to travel very far with the weapon," said Mr Kinchin.
"It may have been pushed into a hedge, thrown into a garden, or hidden in the rubbish and undergrowth of the many alleys and overgrown areas around the street off Cannon Street and Clark Road.
"Items such as the murder weapon and the killer's Lonsdale training shoes would be likely to survive to this day and finding these would be a major breakthrough."
A £10,000 Crimestoppers reward is still available for anyone who provides information which solves the case.
A file for the coroner is being prepared by police so a full inquest into Mr Varga's death can be held.
A man charged with the murder was released in June 2012 after the case was dropped by the Crown Prosecution Service.