PurgatoryOfPotholes:
I am nearly halfway through. I am absolutely certain I know who the killer is, this time. But am I being led up the garden path?
(Non-spoiler heads up...)
I really liked the bit where Robin and Strike thought they had one puzzle piece all figured out, so I thought they really did, but it turned out they'd overlooked a possibility that even I (or anyone who's spent a fair amount of time on social media) should have thought of...