A man who died after being in collision with a car in Waltham Abbey on Friday April 16 has been named as 50-year-old Neil Darnell.
Mr Darnell died in hospital two days following the collision.
A post-mortem examination has now been carried out and the initial cause of death is believed to be traumatic head injury.
The collision occurred around 10am along Farm Hill Road and the driver of the car failed to stop at the scene.
The vehicle involved was found abandoned a short while later.
Detectives continue to appeal for witnesses who were in the area at the time and witnessed the collision, or the circumstances which led to it.
If you have any information about the collision, or any CCTV or dash cam footage available to view, please contact the Major Crime Team on 101, quoting reference 42/72816/21.
Alternatively, you can contact the Crimestoppers charity anonymously on 0800 555 111 or visit https://crimestoppers-uk.org