Officers are continuing to search for the weapon used to kill a man at Bedford’s Wordsworth Court in Byron Crescent yesterday afternoon.
Police are focussing their search for a knife, or other sharp implement, on nearby Shakespeare Road and its short-cuts into Conduit Road and Alexandra Road.
Anyone living in these areas is asked to contact police immediately if they find something discarded in their garden, wheelie bin or elsewhere. They are also urged not to touch anything they find.
Det Insp Jerry Waite, of the Beds, Cambs and Herts Major Crime Unit, is keen to hear from anyone who saw a man in a T-shirt running or walking down Shakespeare Road or neighbouring streets at around 4pm yesterday.
Among those who may be able to help are commuters leaving the train station and parents on the school run. He said: “The weather was extremely cold and the sight of someone running in just a T-shirt may have stuck in someone’s mind.”
Meanwhile a man in his late 40s who was arrested yesterday evening on suspicion of murder continues to be interviewed at Kempston custody suite.
Officers were called to Byron Crescent at around 4.30pm after man in his 30s was taken into an ambulance outside flats, but died despite efforts to save him. He has not yet been named and a post-mortem examination is expected to be held later today.
Anyone with information about the incident to contact them, in confidence, on 101 or Crimestoppers, anonymously, on 0800 555 111.