Christopher Foster murder: Three held over fatal stabbing
Three men have been arrested after a law firm worker was stabbed to death in a suspected case of mistaken identity outside a pub.
Christopher Foster, 34, was killed in Borough High Street, central London, on 29 November.
He was attacked by a hooded gang as he smoked with a friend in an alleyway outside St Christopher's Inn.
Scotland Yard said three men aged 25, 29 and 33 remained in custody at a south London police station.
The gang who attacked Mr Foster were brandishing baseball bats and at least one knife, police said.
The attack was at about 11:45 GMT. Mr Foster was taken to the Royal London Hospital, where he died at 01:05 GMT the following morning.
A post-mortem examination at Greenwich Public Mortuary showed the cause of death to be a single stab wound to the back.
Mr Foster, from Southwark, south-east London, worked in administration for a law firm and had a four-year-old daughter.
Scotland Yard detectives have said they believe his murder was a case of mistaken identity.
Mr Foster's mother, Jean Foster, said her son was "a well loved man" and the family hoped the police would "get justice for Chris".
Two people have already been arrested and bailed.
A 30-year-old man, arrested on suspicion of murder, has been bailed until late January pending further inquiries.
A 32-year-old woman, arrested on suspicion of assisting an offender, has been bailed until early February pending inquiries.