Thornton Heath
The alleged victim was bundled into the back of a van in Thornton Heath on Monday morning.
Two men arrested as newborn baby delivered at scene after its mother was stabbed to death is critically ill in hospital.
The 26-year-old 's baby was delivered at the scene and is in critical condition.
Steven Bishop will be sentenced on Wednesday.
A teenager and a woman in her 60s were both taken to hospital.