POLICE are searching for a man in relation to the death of 35-year-old Rebecca Jane Gascoigne on Friday night.
The man, 42-year-old Shawn Adam Newton, is described as extremely dangerous and members of the public have been warned not to approach him.
Police believe he may be carrying a gun.
He is described as fair skinned, about 186cm tall, with a medium build, very short dark hair and brown eyes.
Anyone who knows his location should call police on 131 44 or Crime Stoppers on 1800 333 000.
Ms Gascoigne was found in a car near the Cedric Street off-ramp in the early hours of Saturday morning.
Police shut down a section of the freeway while investigating the area.
They also attended several addresses as part of the investigation on Saturday.