Hm
Mossley Hill is relatively posh. Also quiet roads at night with poor lighting and lots of vegetation (cover/no patrols), you have to consider the possibility this is, like a lot of crime like this, opportunistic and done by chancer scallies (albeit driving the odd stolen focus/moped) who couldn't care less for conspiracies but certainly have spent a lot of time on facetube and twatter reading about it.