Witness appeal in Derby murder investigation
Police investigating the death of a man on a Derby street have made a new appeal for information.
Serioza Lawskoski, 29, was attacked in Cummings Street in the early evening of 23 April by a group of five men and died later from head injuries.
Detectives have said they want to trace a man and boy seen in a Star Barbers in Lower Dale Road at about the same time.
They have also reminded anyone protecting the culprits they can speak anonymously to Crimestoppers.
The barber's shop is on the road police believe the gang ran along before fleeing in a BMW.
Other customers have been questioned but officers have still to trace the man and child.
Three cars which were at the centre of an appeal last month have been traced, they added.
Det Supt Andrew Stokes said: "I know that there are people in the local community who know who is responsible for this death and they are protecting them.
"I want to appeal directly to those people whether they are a relative, friend or partner and ask them to reflect on the fact that a man is dead as a result of this incident."
Six men, aged between 18 and 28, have been arrested in connection with the attack and have been released on bail.