[Tree of Liberty]

you've got to admit they seem to be awfully good at remaining invisible.

I'll certainly grant that, but they've also been helped quite a bit by inept police, as evidenced by their obfuscation of the evidence by focusing on weapons with no known link to the crimes instead of emphasising the vehicle, which is the only real clue the police have at the moment

[Route66]

I agree with you about the inept police work and I really hope that these guys have just been lucky...because if that's the case, their luck should be about due to run out.