Delaney Brown death: Four more arrests
Four more men have been arrested on suspicion of murder following the death of a 19-year-old cyclist in Luton.
Delaney Brown died in Vincent Road on 5 September when he was struck by a car.
The four aged 20, 18, 18 and 17 were arrested at addresses in Luton and Bedford during raids on 7 November, police said.
Four other men aged 22, 19, 18 and 17, arrested in September and October, answered bail on Wednesday morning.
All eight are now being questioned by detectives from the Bedfordshire, Cambridgeshire and Hertfordshire Major Crime Unit.
Mr Brown's neck was broken when he was struck by a stolen silver 1 series BMW.
Det Chief Insp Steve Collin from the Major Crime Unit said he still needed people to come forward.
"People clearly have information about who was driving the silver BMW that was used to kill Delaney, they now need to do the right thing and speak to the police," he said.
Officers want to trace a young woman with two children who was pushing a buggy along Vincent Road at the time of the incident.
Inquiries established that on hearing the crash she ran to help and officers believe she is a "vital witness".