Murder squad detectives hunting the killer of Sidney Cox have released images of two men they want to speak to.
Mr Cox, 57, died after being attacked at a house on Middleton Lane, Thorpe, on Saturday August 24.
Detectives from the Homicide and Major Enquiry team want to speak to Michael Vallance Dear and Karl Gaskin.
Mr Dear, 38, is 5ft 9ins tall, of heavy build and has sandy coloured hair.
And Mr Gaskin, 40, is 5ft 11ins tall, of medium build and has dark brown hair.
Detectives said the men should not be approached and if anyone sees them they should call police immediately on 999.
Anyone with information should contact police on 101 or Crimestoppers anonymously on 0800 555111.