Two men and a woman arrested in connection with the death of Barry Selby have been released on bail.
The men, aged 21 and 23, and the woman, 23, are all from Bradford.
A 28-year-old Bradford man remains in custody having been arrested on suspicion of murder.
Mr Selby, aged 50, was attacked in Rayleigh Street, Bradford, on Monday, October 14.
Anyone with information should contact police on 101 or Crimestoppers on 0800 555111.