The detective leading a Crawley murder investigation is appealing for a man who police need to urgently trace to hand himself in.
The body of a woman in her 20s was found in the boot of a Volswagen Jetta car, which was set on fire close to Ifield Golf Club in Rusper Road on Friday (March 13).
A post mortem revealed the cause of death was due to smoke inhalation.
Officers are still trying to identify the woman.
Detective Chief Inspector Karen Mizzi, of Surrey and Sussex Major Crime Team, said: “We need to speak to Christopher Raymond Jeffrey-Shaw in connection with the investigation.
“A young woman has died in horrific circumstances. I am urging him to contact police.”
We are trying to identify the victim and would like to hear from anyone who may have an information about who she is
Officers also want to hear from anyone who may have seen Christopher Jeffrey-Shaw, 26, who comes from the Lewisham area of London, or knows of his whereabouts.
DCI Mizzi added: “We also want to hear from anyone who saw anyone acting suspiciously or the vehicle, a Volkswagen Jetta, in Rusper Road, Ifield on Friday between 2pm and 3pm.
“We are trying to identify the victim and would like to hear from anyone who may have an information about who she is.”
Christopher Jeffrey-Shaw is described as 6ft tall, of stocky build with dark hair, and has a stubbly goatee beard.
A 34-year-old woman from Dulwich, London, who was arrested on suspicion for conspiracy to murder, has been released on bail until 30 March.
Police warned the public not to approach Christopher Jeffrey-Shaw but to dial 999 immediately if he was spotted.
Otherwise call Sussex police on 101 or email firstname.lastname@example.org quoting Operation Maderia or contact the independent charity Crimestoppers anonymously on 0800 555111.