The people who did it whatever the reason were locals. If you know the road nick lived on you would know there’s no easy access, one side is locked with an emergency gate or security gate (resident only gate whatever it’s called) the other side is a dead end that leads to a walk over bridge.
There is a road that leads out to another (the only easy access for cars) but again you would have to know the area people would’ve seen them especially how dodgy they were being.
Basically either side (circled) is pretty much a dead end, this is my theory who ever it was must be locals to know the one road they could go down or walk over the bridge that’s the direction they run towards.
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