Detectives investigating the murder of a man in Salford are trying to trace his last movements.
Malcolm Short, 52, was taken to Salford Royal Hospital from his flat at Nineacre Court on Friday afternoon, but died a short time later.
A post-mortem revealed he had suffered a number of serious injuries and police started a murder inquiry.
Officers are appealing to anyone who saw him between 3 and 5 November to contact them.
In a statement, Mr Short's family said: "Malcolm was a kind and loving man who would do anything to help anyone whether they were a friend or a total stranger in the street.
"He was a joker, and a wonderful character, well loved by anybody who came into contact with him.
"This has left our family totally devastated and shocked, and our lives will never be the same."
Greater Manchester Police believe Mr Short may have been attacked at his flat.
Det Ch Insp Mark Gibby, leading the inquiry, said: "The injuries that Malcolm has are consistent with a serious assault and we are confident we will find whoever is responsible.
"At the minute we are trying to build up a picture of his movements prior to his death so I want to hear from anyone who may have seen someone visiting Malcolm or if you saw him leaving his flat."
A 47-year-old man arrested on suspicion of murder has been bailed until 9 February 2011 pending further inquiries.