I had a go at my own sketchmap for those not familiar with the area. It is not a masterpiece of cartography but it might help someone who is unfamiliar. Don't bother to castigate me, I failed CSE art in 1971 and I know my limitations...
Awesome woollybear! I demand more hand drawn maps!
I think the person put her body into the river and not directly into the estuary, because surely if not the car would’ve been spotted at some point on cctv? Even days/weeks afterwards? With no mention or appeal by police for any witnesses to ‘x’ car in the vicinity of an estuary drop off?
The fact that the only appeal by the police is the 3/4 people Croda one is very telling. It’s a shame but I believe they may not come forward as
1-they’re scared of being implicated (most of us would have this fear, I’m sure)
Or
2-doing their own dodgy dealings and want to avoid trouble