Two more people have been arrested on suspicion of murdering a 24-year-old man in the West Midlands.
Indiga Daniel Wallace, known as Danny, was found with fatal head injuries in a flat in Tipton on 11 November.
The 21-year-old man and 19-year-old woman were arrested at an address in Slater Street, Tipton at about 07:00 GMT, police said.
Two men, aged 30 and 34, were arrested on 15 November and later bailed while enquiries continue.
A post-mortem examination confirmed Mr Wallace died as a result of head injuries.
Det Insp Harry Harrison said his family are being kept up-to-date with the police investigation.